Vehicle with a bumper and a deformation element

In a vehicle with a bumper fixed to it via at least one deformation element (10) transversely to the vehicle longitudinal direction, the deformation element (10) has two spaced apart first side walls (28,30) which are connected to one another via two spaced apart second side walls (40,42). The first and second side walls (28,30;40,42) have, running transversely to the vehicle longitudinal axis, pairs of mutually opposing beads lying each in a common plane, first and second beads (48a,b, 50a,b; 52a,b, 54a,b). The first beads (48a,b, 50a,b) extend over the entire width of the first side walls (28,30) and the second beads (52a,b, 54a,b), leaving a marginal distance on both sides, extend only over a middle portion of the second side walls (40,42). The first beads (48a,b, 50a,b) are arranged pairwise in first planes and the second beads (52a,b, 54a,b) pairwise in second planes lying between respectively two successive first planes. The deformation element exhibits high compensatory capacity for the deformation energy impacting the bumper upon a collision and results in essentially symmetrical deformation.