Abstract: A connector device for connecting a first vehicle to a second vehicle, the connector device comprising an upper frame and a lower frame, where the rear side of the upper frame is configured to pivotally connect to the front upper side of the second vehicle, about a first rotation axis, and the rear side of the lower frame is configured to pivotally connect to the front lower side of the second vehicle, about a second rotation axis that is angular in respect to the first rotation axis. The non-zero angle formed between the rotation axes restricts the rotation movements at least about one of these axes. The connector device can be used for forming a removable chain of main and towed vehicle(s) in a manner that enables folding of a towed vehicle over the first vehicle and removably connecting as many vehicles to be towed as required.

Abstract: A vehicle comprising: •a front wheel set and a rear wheel set, each set comprising two wheels and an axle attached to the said wheels; •a base structure or chassis; •a front elastic pivot structure, connecting the front wheel set to the chassis, wherein said front elastic pivot structure comprises a front set of at least one elastic joint, enabling the chassis to tilt along a front roll axis in respect to the said front wheel set; •a front shock absorber, associated with the front wheel set; •a rear elastic pivot structure, associated with the rear wheel set, wherein said rear elastic pivot structure comprises a rear set of at least one elastic joint, enabling the chassis to tilt along a rear roll axis in respect to the said rear wheel set; and •a rear shock absorber, associated with the rear wheel set.