Vehicle with combustion engine and auxiliary device

The motor vehicle, with an internal combustion motor (10) for its motive power, has an auxiliary motor (34) to generate additional heat and current using an external burner (30) with a fuel tank (12). A cold flame reactor (22) treats at least part of the fuel/air mixture from the fuel tank to convert it into a cold flame product. The combustion air incorporates at least part of the main motor exhaust gas.