A new report reveals why BMW never revealed or sold this M5 variant.

Did you know that BMW once built a convertible version of the E34 M5? Perhaps you did, and if so, you likely assumed that it was never meant to be anything more than the secret one-off prototype it ...

Robert has been an auto enthusiast his entire life. He started working on cars at a young age, learning the basics from his father in the home garage on the weekends. Over the years, he learned as ...

But while the coupe and sedan V8 M3s have both shot up in value, the convertible is still lurking in the affordable category, with some examples selling for less than half the price of a new Miata.

A one-off prototype was all set for a 1989 auto show debut, but the automaker suddenly got cold feet about the idea.