An automotive vehicle includes a vehicle body and a fascia coupled to the vehicle body. The vehicle also includes a rigid backer plate coupled to the body. The backer plate is disposed between the body and the fascia, and is spaced from the fascia. The vehicle further includes a compressible layer disposed between the fascia and the backer plate. The compressible layer has a first face proximate the fascia and a second face proximate the backer plate. The second face is provided with a recess to define a cavity between the compressible layer and the bumper plate. A pressure sensor is disposed in the cavity. The rigid backer plate has a backer plate face proximate the compressible layer and a rib member projecting from the backer plate face. The rib member is disposed at least partially in the cavity.