Stunning supercar concepts that never made it to production

Concept cars are how designers experiment with new shapes and features. They don't always work out. These are some of the strangest, most awkward examples. Not every concept car is beautiful. We like it when designers try new things, but sometimes the results are just ... bad. Here we've collected …

Here are the most interesting cars to hit the show floors in the past few years. Not all concept cars are created equal. Manufacturers have gone above and beyond with these 20 concepts.