This won’t be your regular long-term test. The BMW 135i you see here is in pristine condition, but it’s not brand new; it arrived at the office with 6354 miles on the clock and the plan is ...

Some might recall that the N54 was also offered in the BMW 135i coupe and the BMW Z4 sDrive 35iS, but the two engines are significantly different. In the BMW 1M, the N54 engine received changes to ...