The GT by Citroen is powered by an ultra efficient electric motor mounted amidship behind the drivers seat along with the battery, but the real point is if petrol and tyres aren't consumed except for the endurance races then it should be the same for the electric powered cars, a simple fix would be for them to make the amount of energy gained by regenerative braking equal loss due to acceleration or at least make it so you can complete championships with the car
That would certainly fix that problem. I was just talking about how the same thing happened with me when I took the Tesla Roadster in one of the Professional events.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"