Which BMW roadster sounds better? In this head-to-head sound battle, we compare the raw, high-revving 3.2L inline-six of the BMW Z4M (E85) to the deep, turbocharged growl of the 3.0L N54-powered Z4 ...
Which BMW roadster sounds better? The high-revving 3.2L S54 engine in the Z4M E85 or the turbocharged 3.0L N54 in the Z4 35i E89? This sound comparison features cold starts, revving, drive-bys, and ...