This thing is loud. Damn loud.
For fans of Bavarian cars, there is nothing that can touch the BMW M1. The homologation special is the only mid-engine car ever made by BMW, and easily the boldest road car it ever built. In 1979 and 1980, BMW used the cars for a one-make race series commonly referred to as Procar, before backing out in order to concentrate on Formula 1. The car in this video is one of the race cars from that series, and you'll get to see it on the track at Imola.
It's an amazing car, and very loud, but that's quite a good thing in this case. We don't think anyone here will complain.