Model Highlights

Engine Efficiency
You'll notice the power of the engine when you’re behind the wheel, but what you might not notice immediately is how efficient that inline four-cylinder really is. Thanks to BMW's engine management and its lightweight construction, the Z4 has better fuel efficiency and fewer emissions than the competition. The Z4 achieves this impressive level of efficiency through a series of innovative technologies. For the Z4 sDrive30i, Double VANOS maximizes engine response, efficiency, and emission control by electronically controlling valve timing for both intake and exhaust camshafts. Our patented Valvetronic technology, found in both vehicles, enables the engine to breathe more easily, allowing for increased power output while also optimizing fuel efficiency.