Bentley Continental Supersports by Anderson Germany

With a 621-horsepower twin-turbo W12 engine – the most powerful Bentley has ever made – it wouldn't be easy to top the Continental Supersports. But Anderson Germany is up to the task.

The German tuning house has released a series of modifications for the ultimate Conti that brings total output up to a stratospheric 685 horsepower. But they didn't stop there. They've also completely fitted the interior, mounted the vehicle on 22-inch modular alloy wheels and given it a custom body kit. Only 300 examples of the kit will be made, which also fit the standard Continental GT, GTC and Speed models.

Audi TT RS by MTM

Most aftermarket modifiers looking to reach headline top speeds crank up the horsepower as high as they can get it. With its rich background in high-speed testing, MTM knows all about that. But they decided to go a different route this time.

Instead of emphasizing overall engine output, they took an Audi TT RS – already one of the fastest vehicle in the Audi stable this side of an R8 – and tuned it to "only" 472 horsepower. And with it they hit a top speed of 312 kilometers per hour (194 mph), a speed previously thought unattainable with anything less than 500 horsepower.

The best part? They'll set yours up the same way. All it'll cost you is €14,500 for the engine mods and another €9,973 for the upgraded tires, wheels and brakes you'll need to keep it under control...plus a stock Audi TT RS to start off with. Oh, and if you really had your heart set on that 500-hp mark, they're working on that, too.