The 2007 Mini Cooper hatchback gets a top-to-bottom overhaul. Visually, you'll be hard-pressed to notice, as Mini wanted to keep the car's iconic styling intact. But the car is a little bigger than before and has a new interior and new engines. The Cooper S hatchback gets a new 172-horsepower turbocharged engine, while the base Cooper hatchback is now up to 118 hp. The Cooper convertible remains unchanged, save for the addition of a new option package. Called the Sidewalk, the package offers unique alloy wheels, special interior trim and unique leather upholstery, along with features like stability control, a center armrest and a Harman Kardon sound system.