The 2008 Mazda RX-8 is little changed. This four-passenger sporty coupe is unique for using a rotary engine, which replaces pistons pumping in cylinders with triangular rotors spinning in oval chambers. It also has rear access doors that don't open independently of the fronts. RX-8 comes in Sport, Touring, and Grand Touring models. Each has a 232-hp 1.3-liter rotary engine with a 6-speed manual transmission, or a 212-hp 1.3-liter rotary engine with a 6-speed automatic. The automatic allows manual shifting via floor lever or steering-wheel paddles. Available safety features include ABS, traction control, an antiskid system, front side airbags, and curtain side airbags. Mazda offers a special Anniversary model to celebrate the 40th anniversary of its rotary engine. Special features include Metropolitan Gray exterior paint, a Cosmo Red leather interior, unique 18-inch alloy wheels, suspension enhancements, and specific badging. A firmer suspension, 18-inch wheels, and limited-slip differential are optional for the automatic-transmission Sport, standard otherwise. Exclusive to the Grand Touring and Anniversary models are leather upholstery, heated front seats, power driver seat, and keyless entry and starting.