2014 HUMMER HX Concept

2014Hummer.Com
2014Hummer.Com

Last year, GM's SUV-centric brand showed off a concept for a downsized HUMMER called the HX, which would likely be known as the H4 if it were ever to enter into production. Jim Taylor, currently head of HUMMER's operations and likely to stay on after the brand's sale to Tengzhong, has previously stated that the brand is investigating biofuels, hybrids and fully electric machines.