BMW markets the 5 Series as the world’s most successful business sedan, and considering it’s been around since 1972, there’s some merit to that. For the 2017 model year, the 5 Series entered its seventh generation, bringing a new design inside and out, a mild weight decreases thanks to CFRP technology derived from that of the 7 Series, a drag coefficient of just 0.22 Cd, a new 10.25-inch iDrive display, and an updated HUD that covers 70 percent more “space” than that of the outgoing model. BMW has yet to release official output numbers, but a mild increase in performance across the range is expected. BMW hasn’t even opened the order books yet, but that hasn’t stopped it from announcing the first ever M Performance version of the 5 Series. Dubbed the M550 xDrive, it comes complete with a 4.4-liter V-8 that produces 456 horsepower to go with a rear-wheel biased AWD system and an M Performance Chassis.