In the quest for more power, famous BMW tuner and touring car racing legend Alpina has built an M5 with 600 horsepower, easily beating the factory model with its hardly-puny 560 ponies. Torque jumps from 500 to 590 foot-pounds as well, and the top speed is unleashed from a factory-restricted 165 miles per hour to a free-range 204. The best part? There’s a wagon version, for all you practical sort of people.