BMW focused on adding technology and on sharpening the handling of the 2017 5 Series redesign. The midsized luxury sedan is essentially the same size as the outgoing model, but BMW says it's lighter by 220 pounds and the rear seat and the trunk are marginally roomier. Engines include a 2.0-liter turbo four-cylinder with 248 hp in the 530i and a 335-hp, 3.0-liter turbo six-cylinder in the 540i, both mated to an eight-speed automatic transmission. All-wheel drive is optional but standard on the V8-powered 550i. A 530e plug-in hybrid is also available. BMW's gesture control, which lets occupants wave their hands to operate certain control functions, is optional. For 2021 the 5 Series got a mild freshening that brought the latest iDrive infotainment system. Android Auto is now compatible. The 530e plug-in hybrid became more powerful. The latest update also brought a mild hybrid set up for the 540i, and the high performance, track ready M5 returns.