Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Koenigsegg's craziest supercar yet debuts at Geneva

Here's what you need to know about the Koenigsegg One:1. It weighs 1,360 kilograms; it produces 1,360 hp. One horsepower per kilogram, which is why mad scientist Christian Von Koenigsegg is absolutely justified in bragging about it: it's the world's first "mega car," he said.

Watch the 2,000-horsepower Banks Freightliner jump five cars

Mike Ryan does amazing things with the Banks Freightliner. And with Pikes Peak still half a year away, Ryan settles for practice in the Long Beach docks in "Size Matters 2." He weaves the semi in and out of boxes, does donuts in the same tight radius as a matte-black 240SX (driven by stuntman Daniel Leavitt, who ironically shares his name with a reckless driving attorney in Virgina), and dodges even larger trucks. (No Dodges, though there's the Freightliner connection.) All the elements of Ken Block's Gymkhana videos are here: the screeching electronic music, the moody industrial setting, the gratuitous slow-motion.

The AutoWeek list: Foolish cars we should never have bought, but did

2001 Pontiac Aztek Our take: The most recent black eye to the General's style department. A car equivalent of the ubiquitous camel design, put together by a committee whose members obviously didn't speak to each other. 1999 Isuzu VehiCROSS Our take: We don't doubt this Japanese ute's off-road prowess, but its goggle-eye front and corrugated steel door ripples were enormous design miscues.