The first production GMC HUMMER EV supertruck was sold at the 2021 Barrett-Jackson Scottsdale auction for $2.5 million. DETROIT – The Saturday auction of the first GMC HUMMER EV has brought in more than $2 million for the Tunnel to Towers Foundation. The auction fees and commissions have been waived for the $2.5 million auction sale, so the entire amount can go toward the nonprofit. It builds mortgage-free, accessible smart homes for the most catastrophically-injured veterans and provides mortgage-free homes for Gold Star families and the families of first responders killed in the line of duty. The HUMMER EV Edition 1 is the specially appointed and fully equipped launch model of GMC’s first full-electric vehicle.