BMW X3 xDrive28i: new 4-cylinder gasoline engine ... The new 4-cylinder engines feature twin-scroll turbocharging. This means that the exhaust stream from cylinders 1 and 4, and the exhaust ...
It finds all the BMW M add-ons and still sets the compact performance SUV bar high. But along with next-gen X3 M50 xDrive’s updated looks and styling (the new quad exhaust tips, more aggressive ...