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2014 Audi RS7 tuned to 700 hp

Most would consider the performance offered by the Audi RS7 to be plenty, whether they live close to a derestricted autobahn or not. But it wasn't enough for Audi tuner ABT Sportsline, who just introduced their own take on the 2014 RS7. The stock RS7 is powered by a 4.0-liter twin turbo V8 mated to an eight-speed transmission, good for 552 hp and 516 lb-ft of torque.

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.

Will the Acura TLX prototype be a legend?

Okay Acura: We get it. The new TLX sedan is going to be athletic. The word was repeated ad infinitum during Acura's Detroit auto show press conference showing off the company's midsize sedan.