BMW focuses on fuel efficiency in its 2014 lineup, as the company debuts an all-new i3 subcompact electric car, plug-in hybrid i8 sports car, and new 3 Series and 5 Series diesel-powered powertrains. A 2014 4 Series model joins the lineup, as well.

In addition to its new 328d diesel-powered variant, the 2014 BMW 3 Series arrives with an upgraded iDrive system and more standard features–though it is now only available in sedan form. The 5 Series sports a new diesel engine plus updated styling and a more powerful V-8 engine for the 550i, while the 2014 6 Series offers a more widely available all-wheel-drive (AWD) system, limited-edition models, and an updated navigation system. For the top-of-the-line 7 Series sedan, BMW has added a customizable digital instrument panel, foot-activated power trunk lid, and the latest version of iDrive.

Fans of the high-performance M3 will be disappointed to learn that BMW has discontinued that…