Hello, I’m looking for a small camper. Opel, Citroen, Toyota with body extension and the motors blueHDi 145 hp or blueHDi 180 (177 hp) each offer automatic transmissions. Occasionally I would like to attach a box trailer, loaded with 1 or 2 motrcycles, to it. Is it enough 145 hp or do you advise me to take the with 177 hp? Thanks and greeting Uli