The BMW E92 M3 offers a naturally aspirated V8 engine, a six-speed manual or DCT gearbox, and a chassis that rewards skilled driving. It delivers 414 horsepower and a screaming 8,400rpm redline. For under £20,000, it provides supercar performance and the last of BMW’s high-revving V8s. This is a pure petrolhead’s dream: raw, engaging, and increasingly collectible. Buy one before prices rise.