Den-953-3056 on 2040-parts.com

Traffic Booster honks at drivers as soon as the light turns green

The Traffic Booster is a simple little device: a few resistors, some switches, a box with a cheap car horn in it. The schematics are here for easy home replication, dog-eared copy of "The Anarchist Cookbook" not required. But the apocalyptic infuriation it causes is priceless, and if deployed across a city center, the ensuing riots will cause untold millions in damages.

Lexus LFA, from design to dealership in six minutes: Video

Seeing the Lexus LFA in person makes it easy to forget that the supercar has been in development for more than 10 years. But you do get a wondrous amount of technology for $375,000, the carbon-fiber body, a retractable rear wing and a compact V10 so fast that analog gauges couldn’t keep up with it. Add to that 553 hp, 354 lb-ft of torque and a 202-mph top speed, and we just had to put the LFA to the test at our favorite local racetrack.

Aston Martin Cygnet: 2011 production car revealed

This is the new 2011 Aston Martin Cygnet. No concept car this - here's Aston's official production supermini. The Cygnet will be the smallest Aston Martin ever at just 3m long.