The biggest news is under the hood this year. The 528i replaces the 525i and benefits from an improved 3.0-liter inline-six with 230 horsepower, 15 more than last year. The 530i is replaced with the 535i, powered by the twin-turbo direct injection engine from the 335i for a stout 300 hp, a solid 45 hp improvement. Finally, the 550i soldiers on with its 360 hp V8. A six-speed manual is standard, with a new six-speed automatic with an electronic gear selector lever similar to the one in the 7 Series as an option. The 535i and 550i with the Sport Package can get an entirely different six-speed Sport Automatic with paddle shifters, replacing the discontinued SMG manual transmission.