ENERGY-ABSORBING KNEE BOLSTER

A vehicle component may include a crossbeam, a cylinder, a piston, a panel, and a heterogeneous mixture. The cylinder has a chamber and is fixed relative to the crossbeam. The piston is linearly movable in the chamber. The panel is fixed relative to the piston. The heterogeneous mixture is enclosed by the piston in the chamber. The heterogeneous mixture includes hydrophobic nanoporous particles and a liquid.