The Porsche 944 and BMW E30 are two of the most popular chassis to use in drivers events and club racing. Cheap, plentiful and effective, they’re usually turned up with race suspension, cages, and once you’ve run out of gusto, it’s not uncommon to see them get greater motivation. Generally for the 944, this means looking towards the turbocharged variant of the 2.5 liter inline-4 that was available from Porsche themselves; similarly, E30s receive a great swath of later Munich-based motors including the S50, S52 and even S54 if you’re really racey. But today there are two lesser-used mills powering this pair of perennial favorites. Which is the one for your sporting needs? Let’s start with the 944: