Why? Well, the M20 engine combines incredible sound and smoothness with unfailing reliability. And with the E30’s tough-as-nails chassis wrapped around it, it’s seriously fun and shockingly ...

The E30-chassis 3-series is the type of car BMW no ... and the balanced perfection of an inline-six engine. Here, that 2.5-liter M20 six is good for 168 horsepower, which isn't a great deal ...