Just what is the fastest car in the world? Over the last few days, no one seems especially sure anymore. The Bugatti Veyron Super Sport had held that record since 2010, but it was revoked over the weekend. Now the official title has reverted to the SSC Ultimate Aero — and SSC says their forthcoming Tuatra will be even …

It was a rough weekend for Bugatti as the Guinness World Records folks announced that the Veyron Super Sport is no longer the world's fastest production car after they discovered it used a deactivated speed limiter not present on the cars sold to the public. The record reverted to the SSC Ultimate Aero, and so SSC…

Based on this first look at the the SSC Ultimate Aero II's rump we have reason to believe this 275-mph supercar may be from another planet. Just look at its "alien balls" exhaust pod. [TopGear]

The SSC Ultimate Aero II, which you saw exclusively first on Jalopnik, is aiming for a Bugatti-besting top speed of 275 mph with the help of a 6.8-liter twin-turbo V8 according to Top Gear.

These exclusive first photos show the SSC Ultimate Aero II, the second generation of America's fastest supercar. It's gotta new look and a new mission: reclaim the title of world's fastest production car from the Bugatti Veyron Super Sport. UPDATE

The Bugatti Veyron Super Sport just snagged the title of "World's Fastest Production Car" away from the American-built SSC Ultimate Aero. Now the folks at Shelby SuperCars are hinting at a new, faster Aero to challenge the German behemoth.

Shelby SuperCars revealed the new-for-2010 $740,000 Ultimate Aero hyper car in Dubai today. The new model accelerates from 0-to-62 in 2.78 seconds, tops out at a blistering 260 MPH and now gets one-piece all-carbon-fiber wheels. Seriously.

The very same Guinness-verified, "World's Fastest Production Car," official record-breaking, Veyron-besting-with-a-speed-of-256-MPH SSC Ultimate Aero is sitting on eBay right this moment. Unfortunately, there's no "Buy It Now" button.

Whether an engine or a steering wheel, parts-sharing is an easy way for manufacturers to save money. Still, many car owners may be surprised by what parts get shared. Here's 12 unlikely examples.

Shelby SuperCars already has the world's fastest production car title belt, now they're planning to up the ante, introducing the Ultimate Aero EV: The world's fastest electric production car, with a ten minute charge time.