Completely ridiculous: Ariel Atom 500 V8

Light weight + lots of power = speed. A simple formula that usually results in either a) a heavy car with lots of power, or b) a light car with good power. And for good reason, as too much power with too little weight could be disastrous for some more, shall we say, unskilled drivers.

However, in rare instances some choose to take it to the extreme. In which case we have the following to offer: the Ariel Atom 500, which weighs 1,102 pounds and sports a 2.4 liter, 500hp V8. The engine is a marvel in itself, achieving peak power at 10,000 rpm.

Conservative estimates put performance from 0-60 under 3 seconds and 0-100 in seven seconds which shifting through a sequential six speed gearbox. For those brave enough to own or drive one, pricing and availability haven't yet been announced.

400 hp 5.0 "Coyote" confirmed for 2010

5.0 is a magical displacement, one that means a lot to the Ford loyalists, and now the designation is going to make a comeback. Many moaned and groaned when the 2010 Mustang was released and retained the 'ol 4.6, but spy shots showing an aluminum engine under the hood of a new Mustang gave hope for the future.

According to Ford Australia's product development director, Russell Christophers, the U.S. team is indeed working on an all-new, aluminum double-overhead cam 5.0-liter V8 – codenamed "Coyote" – with output expected to crest 400 hp and around 400 lb-ft of torque. Christophers told Australia's Drive, "I have seen the performance curves and it is a pretty good engine."

The new 32-valve, 5.0-liter V8 is expected to be fitted to the Mustang and F-150 sometime in 2010, replacing the current 4.6- and 5.4-liter. This will certainly give the new Camaro a little run for it's money.