BMW S65 Engine Explained: Reliability, Tuning, and Efficiency
The BMW S65 V8 in the E9X M3 is a high-revving masterpiece—but is it reliable? Learn about its common issues, tuning potential, and maintenance costs.
bmw s65
Video: S65-powered BMW E30 M3 having fun with 911 GT3 RS on track
Check out this E30 M3, with an S65 4.0 liter V8 engine swap from an E92 BMW M3, take on a 911 GT3 RS on track.
