 Exterior, interior and options remain identical to the 2008 G35 model range but the sedan now also sports the 3.7-liter VQ37VHR "VVEL" V6, rated at 7,000 rpm and at 5,200 rpm that was previously introduced in the G37 Coupe.Although the engine gains only torque over the VQ35HR and this torque value arrives at a later 5,200 rpm vs. 4,800 in the VQ35HR, the torque curve itself is improved and flattened across the rpm range via Nissan's new VVEL (Variable Valve Event and Lift) variable valve timing resulting in better throttle response and low rpm torque.The G37s VQ37VHR engine has been touted by car magazines and reviewers as an improvement over the VQ35HR engine mostly adding much more refinement and smoother engine operation, especially at high rpm where the VQ35HR engine was frequently criticized for NVH and sounding strained, harsh and loud.