CylinderBase01, CylinderBase02, CylinderBase03, CylinderTop02, Collider (the small one on the arm), and CylinderTop01 changed from Vehicle World to Vehicle Detailed. The Vehicle World layer is only used for actual driving physics, so anything that's not a big chunky area of a vehicle can probably be on the Vehicle Detailed layer instead, which handles the detailed collisions from players or bullets.