First of all, thanks for all the great Workhorse Engine of the Day suggestions, everyone- we'll be working down the list, so keep the ideas coming and don't get upset if your favorite engine hasn't appeared yet. Today we're going over to Europe (thanks to the suggestion of PatrickAustin) to take a look at the venerable BMW M30 engine. Built in various displacements for nearly 30 years, the Bavarian über-six-banger powered a bunch of our favorite BMWs, ranging from our last DOTS BMW to the '94 730i. And while we're at it, we'd like to thank Wikipedia for boasting so many must-read engine pages that, once lured in, you might as well forget about working for the rest of the day. [Wikipedia]