Image Item No. Description  11650c02  Vehicle, Base 5 x 10 x 2 1/2 with Mudguards and 6 x 2 Recessed Center with 3 Holes with Light Bluish Gray Wheels Holders Attached Catalog: Parts: Vehicle, Base  18923c01  Vehicle, Base 8 x 16 x 2 1/2 with Mudguards Raised, 4 x 14 Recessed Center with 3 Holes, and Dark Bluish Gray Wheels Holders Catalog: Parts: Vehicle, Base