autoevolution | This Is What the 2016 Citroen C3 Looks Like Without the Airbumps autoevolution The bumps are made from Elastollan HPM, created by the BASF Corporation. It's the first thermoplastic polyurethane (TPU) that can be used on the vehicle exterior. On the Cactus, Rehau makes the side Airbumps, and Faurecia produces the ones at the front ... |