2014 BMW M235i: Shaking Off The Ghosts Of Performance Past Published on September 12, 2014 in Test Drives by Benjamin Hunting Photo: Benjamin Hunting. The 2014 BMW M235i's 3.0-litre turbocharged inline six-cylinder engine hums to life with a purposeful twin-tailpipe announcement, proclaiming to the world its 320 horsepower and 332 lb-ft of twist.