Porsche Boxster 986 (1996–2004)
The 986 was the first Porsche Boxster. It saved the company in the late 1990s. It’s not an enthusiast favorite, because it was water-cooled, it was a convertible — and mere mortals could afford it. Nonetheless, it’s a two-door, naturally aspirated flat-six-powered Porsche that you can find for less than $15,000 — or a little more, if you want an absolutely mint one.