The HS250h will be coming in well above the Prius, but rightfully so, it's a considerably more luxe offering and gets things done in the handling and driveability department in a way the Prius just doesn't. It also gets several new Lexus systems including Safety Connect, the Lexus version of OnStar. They'll be hitting dealers next month.

Despite all outward appearances — it looks like a Toyota Corolla or even, as we first thought, the last-gen Prius jazzed up with the L-Finesse styling language — this Lexus is based on the same platform underpinning the Scion tC and foreign-market Toyota Avensis, with a fully independent suspension and a size somewhere between the IS and the ES models.

But one thing Lexus makes clear is this isn't a Prius. According to Lexus, the HS 250h courts a different kind of customer than the Prius; younger, more technologically-savvy and while not a green-freak, maybe more concerned about the environment than your average luxo-buyer. Which is good because with fuel economy figures of 35 MPG city, 34 MPG highway and 35 MPG combined the HS is not exactly a world-beater. But it's not like it doesn't have a lot of the same enviro-toys found in other hybrids. The HS has a 2.4-liter Atkinson-cycle inline-four with 147 HP under the hood, and combined with a 40 HP electric motor, there's a grand total of 187 HP. That power mates up to a CVT transmission backed up with heavy duty aerodynamic optimization and driver assistance tools. So how's it only managing to eke out a 35 MPG rating? Well, it's really pessimistic.

We're not the type to drive 5 MPH under the speed limit and use high-mileage techniques (ever), but our copilot today was and with "ECO" mode engaged, windows up and air conditioning off, he managed an astounding 57.9 MPG. It was, as you'd expect, a crushingly boring affair. When it was our turn in the driver's seat we dropped all the windows, opened the sunroof, blasted the air conditioning, put it in power mode and floored it, then hit the brakes, floored it, then hit the brakes, floored it…you get the idea. Driving the exact same course as our previous tester and being really bad the whole way 'round, we could only get down to an embarrassingly decent 30.3 MPG.


We'd consider ourselves failures if not for the very important fact that we actually had fun. If you ignore the proclivities of the CVT, the car is actually not a total dud, accelerating to 60 MPH in about 8.7 seconds, handling corners in a way we didn't think a hybrid could and, when you push it past the point of reason, it doesn't surprise, just gradually transitions to predictable understeer. Sure it's sprung for a soft ride over control and it certainly delivers the comfort Lexus is known for, but it's definitely not fall-asleep soft. One thing to note though, a smoky brake stand is impossible with the HS 250h. Engaging the electric parking brake takes the car out of drive and any simultaneous application of the brakes and throttle just causes the engine to sit there, the tach staring up at you like you're an idiot as it idles around 1500 RPM. That does, however, make standing starts pretty rapid.
With our doubts assuaged about the performance, it's time to look at what Lexus did inside. If you've looked at the 2010 Lexus RX 350 and RX 450h, you'll find a lot of similarities with the HS. The overall feel is the sort of spartan, high-tech luxury pioneered by the Swedes but interpreted by the Japanese. High quality materials reside throughout, with 30% of materials derived from plant-based sources, though the effects of weight reduction can been seen in a somewhat flimsy glovebox door and door map pocket. Otherwise, everything is top notch. The hand-stitched leather sprinkled around the cabin is a nice touch, as are the supportive seats and plush carpets.

As with the Prius, the dinky shift-by-wire knob is stupid and horrible and too much like a video game controller. The myriad buttons scattered across the dash make the learning curve a bit high, though many are rarely used in the day-to-day. The optional mouse-like Remote Touch Interface brings the full cadre of eco data-logging and navinfotainment options on a pop-up screen. It'll also provide camera views for option rear and front cameras. Yes, a front camera, which provides a 180 degree view so you can poke your nose out of obstructed view area into traffic and see what's coming. New this year and first in the HS is a sort of OnStar meets XM Travel, called "Lexus Enform." It'll roll out to all Nav-equipped Lexi this summer, and it does stuff like live weather updates, traffic, destination assistance an pretty much everything OnStar and Sirius Travelink does, but from Lexus. It also lets you create roadtrips on a computer and upload them via Enform to your car, up to 20 routes with 200 points of interest each.

If you didn't know better, you'd think the HS 250h was no different than any other Lexus, just equipped with an annoying CVT transmission. For any full hybrid that's strong praise, but from a green perspective, it's maybe not as efficient as it could be, trading decreased fuel economy for increased luxury. If we had to live with a hybrid, it would probably be a tough decision for us between the 39 MPG combined 2010 Ford Fusion Hybrid and the HS 250h. We'd probably end up with the Fusion hybrid, because we expect the price-point's lower than an expected mid-30s starting price on the HS, although somehow we suspect buyers in the market will let their brand loyalties and preconceptions make that decision for them.

The new "Remote Touch" system found on the HS 250h is one of the first production infotainment systems to include a controller similar to an inverted-track ball mouse, as opposed to either a touchscreen or a control knob found on most systems. Placed in the vehicle where the hand naturally rests, the "Remote Touch" is likely to reduce the movement of the shoulders which occurs when a driver goes to touch a screen. This is nice because many people tend to move the steering wheel at the same time, causing them to depart from lanes.

When you look at the screen you see a typical mouse pointer or, if you select it, a gigantic hand. When moving the inverted mouse button around feels fairly natural and the reproduction on the screen makes it easier to make a selection. This gives the system an advantage over a knob, which requires too much attention paid to a screen to select button direction.

The screen itself is located at a far, high angle in a place seemingly easier for a driver to see. The demo system was pulled out of the car for use, so it is hard for us to say concretely how well the view-angle is with complete certainty. We can say the humongous screen is much easier to read, though the map layers aren't as nicely-designed as something you could find on a $200 Garmin Nuvi.

Using the interface is easy, and not in the way most systems are easy for someone who has used a navigation system before. The Hard Disk Drive (HDD) navigation display isn't drastically different in its nesting of menu pages from other systems, but the ability to select the layers of information with a mouse-like control makes them easier to jump through.

Like the 2010 Toyota Prius, the Lexus HS 250h is only offered as a hybrid and will carry a larger four-cylinder gasoline power plant. In order to differentiate the Lexus from the Prius the company went not only with a new, less geeky aesthetic but also with superior features. One of the key pieces is the new HDD navigation system and, compared to the base DVD-based Toyota system, it may be worth the premium. You can also find the system on the 2010 Lexus RX and the new LX-series vehicles.

The much-rumored hybrid-only Lexus HS250h, despite its redundant name, elevators the company's popular Prius platform and presents it in a way the company hopes will broaden its appeal. Specifically, Toyota is aiming at a segment who may already have purchased a Prius, or considered purchasing one, but could afford paying more for one.

The specifics of production are vague, though the 2010 model year indicates the vehicle will come to market sooner-than-later so Lexus can rightly claim the new HS 250h is the first and, for a time, only dedicated luxury hybrid.

DETROIT (Jan. 11, 2009) – Lexus today revealed the 2010 HS 250h, the world’s first dedicated luxury hybrid vehicle, at the North American International Auto Show. The HS 250h will be Lexus’ fourth hybrid and the most fuel-efficient vehicle in its lineup. It also will be the first Lexus to utilize carbon-neutral Ecological Plastic materials in a new futuristic cockpit and interior design.

A welcomed addition to Lexus’ entry-luxury sedan lineup, the HS 250h fits nicely between the IS luxury sport sedan and the ES luxury sedan. Research has shown that more than 60 percent of entry-luxury car buyers would have considered a hybrid if available, and the HS will provide these consumers with a viable purchase option.

Equipped with Lexus’ first four-cylinder gas engine, the 2.4-liter Atkinson-cycle powerplant is part of the latest Lexus Hybrid Drive System, which generates 187 total system horsepower. The highly efficient Atkinson-cycle engine, made possible by the Variable Valve Timing with intelligence (VVT-i) system, allows the expansion/power stroke to be longer than the compression stroke so that combustion energy can be more effectively used for production of engine power. The HS 250h sedan’s expected fuel efficiency will be more than 30-percent better than the most fuel-efficient model currently in the Lexus lineup, while earning a SULEV emissions rating utilizing regular 87-octane gasoline. Among the technologies adopted in the 2.4-liter four-cylinder engine are cooling piston oil jets; an optimized balance shaft rate for improved Noise, Vibration and Harshness (NVH) characteristics; and a hot-air venting system mounted behind the radiator.

Like the all-new 2010 RX 450h hybrid utility vehicle that made its debut in November, the HS 250h will include a new system designed to improve efficiency. The exhaust heat recovery system reduces engine warm-up time, thus allowing it to stop earlier, more often, and for longer periods. A windshield with infrared-ray (IR) reduction properties, which helps keep the interior more cool, has been adopted in order to decrease the amount of air conditioning needed to lower the cabin temperature. In addition to the exhaust heat recovery system and the IR windshield, available power-saving LED headlamps also contribute to improved fuel efficiency and emissions.

The all-new HS 250h sedan’s 0.27 drag coefficient (Cd) makes it among the most aerodynamic in its class. Airflow management over the exterior, below the under floor and through the air passages was extensively examined. A unique gull-wing-shaped roof-panel design reduces mass and overall vehicle height, thus reducing drag and improving fuel efficiency. The front spoiler, rear spoiler, rear under spoiler, and diffuser fins all reduce turbulence. Smooth A-pillar shape and the optimized angle and curvature of the bumper side panels also reduce wake turbulence, as does the increased taper of the fender side panels. The under-floor covers have been optimally positioned for reduced drag, while airflow restriction in the engine compartment has been lowered by optimizing the air-duct profiles around the radiator.

Aerodynamic design has also contributed to decreased wind noise. A smoother transition between windshield (complete with a sound-insulating inner layer) and roof line has improved air flow and reduced turbulence.

As is appropriate for the first dedicated luxury hybrid vehicle, the HS 250h includes proactive adoption of plant-based, carbon-neutral “Ecological Plastics” or bio-plastics in specific interior areas. Ecological Plastic emits less carbon dioxide during a product’s lifecycle than plastic made solely from petroleum. Among the areas of utilization will be an industry-first use in luggage-trim upholstery. Other areas are the cowl-side trim, door scuff plate, tool box area, floor-finish plate, seat cushions, and the package tray behind the rear seats. Overall, approximately 30-percent of the interior and luggage area is covered with Ecological Plastic. Over the estimated lifecycle of the vehicle, the HS 250h will have approximately 20-percent fewer carbon-dioxide emissions as a result of utilizing the Ecological Plastic trim pieces.

Like all Lexus hybrid models, significant time was spent in developing the HS 250h with optimized NVH characteristics. Dynamic dampers at each engine-mounting point reduce noise and vibration, resonators improve intake air noise, and optimized exhaust flow reduces exhaust sound. Special coatings dampen both engine and road noise, while improved seals around doors, hood and fenders reduce wind-noise penetration into the cabin. Vibration has been reduced by improving the shape and thickness of the suspension-mounting points. In addition, power-window speed controllers have been adopted from the LS luxury sedan, which insure a slower, soft closing rate.

The HS 250h chassis design provides an outstanding ride and comfort with the decreased NVH required by a Lexus hybrid. The MacPherson strut front suspension is designed to achieve both straight-line and braking control, and a positive steering feel. A double-wishbone rear suspension provides excellent maneuverability, control and comfort with a low spring mount that contributes to better packaging and superior cargo space. Coil springs, anti-roll bars and shock-absorber rebound springs are utilized front and rear. The HS 250h will have uniquely designed standard 17- and optional 18-inch wheels.

The rack-and-pinion steering system utilizes a brushless Electric Power Steering (EPS) motor on the steering column, which provides improved steering feel, a reduction in harsh feedback, and better emissions by not draining engine power like conventional hydraulic systems.

The EPS is an integral part of an available lane keep assist system, a new driver assist that adds smooth steering torque to help the vehicle stay in the center of the lane. The amount of assisted torque is dependant on a lane-marker detection camera. It includes a lane departure warning feature that is designed to detect possible lane departure; it then gives the driver an audible warning and provides feedback via the steering wheel to encourage corrective action.
The HS is slightly longer than the IS and is taller than both the IS and ES. It also has a greater couple distance (distance hip to hip between front and rear passengers) than any other vehicle in its class other than the ES. The contoured front-seat backs also add to increased rear-seat legroom.

The HS features a unique advanced cockpit and an interior design that emphasizes innovation and craftsmanship. The uniquely stylish cabin has standard leather-trim seats, a moonroof, Lexus premium audio systems, and a new standard multi-media package. The media features include Bluetooth® technology, integrated satellite radio (subscription required), voice recognition, and USB iPod connectivity controlled via steering-wheel controls or a display screen. A high-contrast multi-information display, located in the instrument panel’s hybrid system indicator gauge, is controlled via steering-wheel-mounted controls, allowing the driver to easily control various functions and information.

Another key element of the modern interior is Lexus’ new available Hard Disk Drive (HDD) Navigation System, which features a retractable navigation screen that is positioned well back and up front in the dash. The positioning helps improve visibility and reduce driver eye movement. Similar to the new RX, the HS system features the all-new “Remote Touch” controller that is both intuitive and ergonomic and allows for easy use of the Navigation System. The controller is positioned on the center console and is as natural to the driver’s hand as a computer mouse. It can also be customized to the desired level of haptic feedback.

The Navigation System also includes a new casual-speech voice recognition feature. This allows drivers to give more flexible, conversational commands for easier access and control of the audio, climate and navigation functions. Also included are XM® NavTraffic® and NavWeatherTM, along with XM Sports and Stock information.

Also helping to reduce driver eye movement is an optional Heads-up Display (HUD). The HUD uses high-intensity LEDs to make the display bright enough to be read even in direct sunlight.

A class-leading 10 airbags will be standard on the all-new HS 250h as well as active front head rests, which help passengers in case of certain types of rear-end accidents. The HS also will feature Lexus’ Vehicle Stability Control (VSC) system and optional Pre-Collision System with Dynamic Radar Cruise Control.

An available wide-view front monitor helps the driver to check hard-to-see areas. Using a camera mounted in the front grille, the monitor provides a 190-degree front view on the Navigation screen with the push of a button on the steering wheel.

The HS 250h will also offer Lexus’ next generation telematics systems, Lexus Enform and Safety Connect. Safety Connect will provide automatic collision notification, stolen vehicle location, 24/7 emergency and roadside assistance.

Lexus Enform’s Destination Assist features operators who will help drivers look up points of interest such as shopping centers or other business locations like Zagat-rated restaurants, and then wirelessly send directions directly to the vehicle’s navigation system.

Lexus Enform’s eDestination service will allow customers to pull up multiple points of interest on any computer and send them directly to the car’s navigation system. This innovative new feature will allow drivers to send a total of 200 destinations at a time to their vehicles.

The all-new 2010 HS 250h will reach dealerships nationwide in late summer.

We told you back in August that Lexus was developing its own dedicated hybrid model to sell alongside Al Gore’s favorite ride, the Toyota Prius. Months ago this was only rumor but now the Japanese giant has made the news official, by launching a new section on its consumer site this week. The site offers little detail about the new hybrid other than it will be called Lexus HS 250h and it’ll go on sale in the Fall of 2009.

If you can’t wait to get your hands on a luxury dedicated hybrid until then, don’t fret. Lexus will debut the HS 250h at the Detroit Auto Show on January 11th. While little detail is actually known about the earth-saving Lexus, we’re willing to bet our mother’s soul that it’ll be built upon the same platform and feature the same next-generation Hybrid Synergy Drive as the next-gen Prius – also set to debut in Detroit. Toyota will soldier on with the nickel-metal hydride battery packs until the lithium-ion battery packs are validated, but will change the packs as a mid-cycle refresh rather than wait for an all-new vehicle.

We’re curious how the Lexus HS 250h will hold up against the much rumored Cadillac EFLEX that’s also making its debut in Detroit next month. Until then, we have an image of what the Lexus HS 250h could look like below.

[via Lexus, Hybrid Cars]

We'll let Mag-X take it from here:

The drawing reveals a well-proportioned four-door car with Prius-like lines and angles—especially the front slope of its windshield and hood—while retaining design cues which are unmistakably Lexus, most notably the back-end and taillight styling.

The publication says the Lexus HS250h will most likely be outfitted with the 2.4-liter engine and electric motor combo found in the Toyota Camry Hybrid, and share many of the same mechanicals as that car. This includes the current-generation nickel metal hydride battery. Carrying over the powertrain would be significantly more cost-effective than developing an entirely new system for the Lexus brand.

Setting itself apart from the more mainstream Toyota brand, the Lexus concept car will feature a technology and entertainment module, controlled from the center console, much like BMW’s iDrive system. A roster of luxury equipment not offered by the Prius or Camry Hybrid will also be included.

If the HS250h sedan comes to fruition, it could join the Lexus lineup by late 2009 or early 2010. Price, technical specs, and other key stats will remain unknown, until official word from Toyota.

[Mag-X via HybridCars]