2012 BMW Z4 sDrive28i
Fitted with the six-speed manual, BMW claims the Valvetronic-equipped four will hit 60 mph in 5.5 seconds, while the new eight-speed automatic gearbox does the deed in 5.6 seconds – a decrease of 0.1 and 0.4 seconds, respectively, over the six-cylinder. And as you'd expect, overall weight is down as well, with the new four-cylinder Z4 tipping the scales at 3,252 pounds, or about 33 pounds less than the outgoing sDrive28i.
For over a decade, only one premium automaker has offered a four-cylinder in the U.S. And while the recent rise of Audi in the States isn't solely because of its 2.0T engine, it's obvious that luxury buyers are finally coming around to the idea of a fuel-sipping four-pot. As a matter of fact, they're starting to demand it. And BMW is heeding the call.
Next year, BMW will begin offering its turbocharged and direct-injected 2.0-liter inline four-cylinder engine on the 3 Series and 5 Series, matching Audi car-for-car in the entry-level and mid-size segments. But before the sedans arrive on U.S. shores – nixing the naturally aspirated 3.0-liter inline-six in the process – BMW is slipping its TwinPower four-cylinder into an unlikely host: the 2012 Z4 sDrive28i.