Two generations of BMW roadsters, two unique engine characters — which one sounds better? In this Z4 sound battle, the BMW Z4 35i (E89) with its 3.0L turbocharged inline-6 faces off against the iconic ...
Experience the ultimate BMW roadster sound showdown as the Z4 35i (E89) with its 3.0L twin-turbo inline-6 goes head-to-head with the legendary Z4M (E85) powered by the 3.2L naturally aspirated S54 ...