With a twin-turbo V-8 that churns out up to 617 horsepower, the 2021 BMW M5 deserves a more explicit classification than mere sports sedan. For the M5, that means a new standard 12.3-inch touchscreen infotainment display, BMW's new cloud-based navigation setup, new headlights, and new taillights. There are a number of M5-specific changes, too. On the inside, the three buttons to change the settings for the damping, steering, and throttle response are gone. Instead, they've been moved to the infotainment display. Some of you might miss the physical controls, but BMW says it's more intuitive. We'll find out for sure when we get our hands on one. On the outside, the M5 gets a freshly redesigned rear diffuser and larger grille and front bumper intakes to help cool the sedan's twin-turbocharged V-8 engine.