The 1969 Porsche 912 was the last of its kind — a four-cylinder alternative to the 911 that briefly outsold its six-cylinder sibling before Porsche folded the nameplate away for good. Built on the same stretched wheelbase and flared fenders as that year’s 911, it’s now drawing steady collector interest for being simpler, cheaper to maintain, and increasingly rare. A well-kept example today can bring well into five figures.