15: GMC Sprint
Likewise, the El Camino’s clone wasn’t that great of a car either, and it was the only car GMC ever built. What the GMC Sprint did wrong was differentiate itself from the El Camino. The car was not different in any way other than the badge on the grill, and this left a bad taste in the mouths of enthusiasts (via Car Gurus).
Even with the rising values, the Sprint is as bad as you remember. The car has an ugly design, and there isn’t much to boast about in terms of performance or versatility either. The Sprint is worth avoiding if you are in the market for a sports car from this era, there were so many better options.