BMW Z4 Roadster to be first four-cylinder offered on U.S. shores in decades

Forced-induction, four-cylinder engines and small cars go together likes punch and pie. BMW understands this, and the automaker has officially announced that the Z4 is the first U.S. model to get its new turbocharged mill. This marks the first time in decades that BMW is bringing a four-banger to U.S. shores. Fans of the 2002, rejoice.The BMW Z4 sDrive28i Roadster will serve up its engine bay for the new turbocharged 2.0-liter inline-four. Output is rated at 240-horsepower at 5,000 rpm and 260 pound-feet of torque, which arrives at just 1,250 rpm. Using a combination of direct-injection, BMW's Valvetronic intake management and a twin-scroll turbo allows the engine to produce V6 power with I4 efficiency. BMW expects to see a 20 percent improvement in fuel efficiency compared to the outgoing motor. The eight-speed automatic transmission will also certainly help the Z4 in the fuel economy fight. - Autoblog