About our Kymco 250 ccm – No marathon test Moto club failed to make this excellent quadricycle to the slightest defect! By the heat, rain, snow, wind … The MXU 250 did a job without a mistake, which is no surprise – Gerry Mayr has gone no further than the Guinness Book of Records with this superb ATV, achieving the longest drive in the ATV, while 13,519 km across 18 European countries.