For modern efficiency, the 2.0L turbocharged 330i can achieve up to 36 mpg on the highway .

The 3 Series is defined by its internal "E," "F," or "G" codes, each offering a distinct ownership experience:

A timeless design that feels connected to the road. It's now reaching "modern classic" status, making well-maintained examples harder to find but highly rewarding. 2. Best Years & Engines to Buy