Back in 2020 I took a look at an oddball – the 1990 Bertone Freeclimber – which was on this page solely because of the power plant. In that case, it was BMW’s relatively unloved M21 turbodiesel inline-six. That engine also found its way into the weirdly cool Vixen motor home and a Lincoln Continental, and when unloved there, the BMW 524td there. But in Europe, you had the option to install it on your E30, as well! Only in this case, it didn’t have the turbocharger. Dubbed the 324d, it was available from 1984 to 1990 and…you guessed it….relatively unpopular. Perhaps that’s because it was the least powerful E30 option, and it was only offered as a sedan. 0-60 times made the underpowered 320i seem sprightly; it took the 324d over 16 seconds to hit 60. BMW finally added a turbocharged 324td model for the end of production, but they still weren’t sold in big numbers. One of the late naturally aspirated examples has turned up for sale in California, though: