Why, let's build a motorcycle ... around -- an 8.2-liter supercharged Mopar V8. Whooee! That's a lotta iron to climb over just to get to the drag strip. It's road legal, and some ingenuity ...

A Yamaha R1, Dodge Challenger SRT Hellcat, and a tuned Audi RS 3 go head-to-head in a thrilling quarter-mile showdown.

French quad-bike constructor Lazareth has outdone itself, packing a Maserati V8 engine into a sport bike to make for a death wish on wheels. You want to know what insanity looks like? This is it.