2007 Infiniti G35 Sport 2007 BMW 328i vs. 2007 Infiniti G35 Sport So what's this twin-turbo version of BMW's familiar 3.0-liter inline-six doing under the hood of this 2007 3-series coupe?

Which roadster sounds better — the naturally aspirated 3.2L inline-6 from the BMW Z4M (E85), or the twin-turbo 3.0L in the Z4 35i (E89)? This sound battle compares both engines through cold ...