That guy next door with the V8-powered 1978 Ford Fiesta may not be telling you the whole truth. Oh, he just swapped in a Harley V-Twin? Yeah, that sounds fishy. That poseur's probably sporting one of these $159 jobbies under the dash. It's the VroomBox, an electronic emulator that hooks to a car's tach and vacuum sensor and digitally recreates engine sounds from 15 different cars, like the Pontiac GTO (what year?), Nissan 350Z, Camaro SS and Vespa scooter (!). You can even download more engine sounds from the Web. You need a set of decent speakers, but it's still cheaper than the real thing, by a long shot.
VroomBox Is Like Crotch Stuffing For Your Car [Gizmodo]