In the early days of Bavarian Motor Works, the four-cylinder engine was the basis for many of the cars. The combination of the small, two-door BMW sedans and the M10 four banger was successful in a big way. By the … Continue reading

Inside Line takes the Turbo-4 equipped 2012 BMW Z4 sDrive28i to the rollers. The Dyno test reveals that the new 2.0 liter TwinPower turbo four-cylinder engine outputs 233 rear wheel horsepower at 5350 rpm and 249 lb-ft at 4450 rpm. … Continue reading

Starting this fall, BMW of North America will introduce an update to the BMW Z4 sDrive28i model. The change comes from underneath the hood where BMW replaces the six-cylinder natural aspirated engine with a new four-cylinder turbocharged unit. The replacement … Continue reading

With the 2012 BMW Z4 sDrive28i, the Munich-based automaker introduces the first four-cylinder engine into the U.S. market. The 2.0L four-cylinder engine will power the ’28i’ badged BMWs and replaces the venerable N52B30 six-cylinder naturally aspirated unit. Its replacement provides … Continue reading

Starting September 2011, the BMW Z4 Roadster goes through some changes under the hood. The new N20 four-cylinder TwinPower engine will replace the inline-six unit found in the sDrive23i and sDrive30i models. The two new models will be sold under … Continue reading

First US model to receive the new N20 2.0 liter four-cylinder TwinPower engine is the 2012 BMW Z4 sDrive28i. Unveiled on Monday during the press conference at BMW Manhattan, the revised Z4 made its public debut today at the 2011 … Continue reading