Ford Probe
Ah the Probe, how times have changed. At one point, the Probe was being contemplated as a replacement for the Ford Mustang. The executives at Ford didn’t foresee a market for pony cars in the future. That was wrong, and the Probe sold poorly compared to the Mustang model still on the road (via Driving Line).
There were some interesting versions of the Probe such as the 24V edition. But the Probe couldn’t replace the popular Mustang line. The design wasn’t what buyers were looking for in a sports car. Brand loyalty is also a major reason the Probe never took off because Mustang owners are loyalists.