28. Devon GTX
Devon conceived this car to be the ultimate American sports car using a Dodge Viper RT10 base and engine with numerous modifications. Also, they upgrade the power to 650 HP. The GTX used the same six-speed manual with improved performance and top speed. It even broke a few track records during testing, but they never officially confirmed that.
Unfortunately, the economic downturn and recession of 2009 and 2010 hit the car industry especially hard, which caused big problems among car makers. So, Chrysler decided to kill the Viper project and discontinue the production of its platforms and engines. And that had a devasting effect on Devon’s production of the GTX.