This video compares the exhaust sound of two BMW Z4 models: the naturally aspirated Z4M E85 with a 3.2L inline-6, and the Z4 35i E89 with a 3.0L turbocharged engine. Both cars are recorded during ...

In this exhaust sound battle, the legendary BMW Z4M (E85) with its high-revving 3.2L naturally aspirated S54 engine goes head-to-head with the BMW Z4 35i (E89), powered by a smooth and punchy 3.0L ...

On the other hand, we have a modern Z4, an E89 sDrive35i model. This one uses the more common N55 plant that makes 306 HP and 400 Nm (295 lb-ft) of torque. When hooked up to an automatic 8-speed ...