Patent ID: 8746388

Claim:
A vehicle comprising: a front axle with a pair of front wheels ( 111 , 112 ) having a track width adjustable between a wide track and a narrow track, a drive rear axle with a rear wheel ( 121 ), track width control means configured to change the track width of the front wheels ( 111 , 112 ) and to change the wheel base between the front axle and the rear axle such that for the wide track of the front wheels ( 111 , 112 ) the wheel base is longer than for the narrow track of the front wheels ( 111 , 112 ), characterized in that it further comprises: steering means configured to control the turn of the rear wheel ( 121 ) when the front wheels ( 111 , 112 ) are set to the narrow track, wherein the front wheels ( 111 , 112 ) are non-turnable when the front wheels ( 111 , 112 ) are set to the narrow track.