Continuity mistake: During the chase scene with the Cadillac and Sunbird, the Caddy follows the Sunbird over a berm, launching it into the air. When it lands, the right front wire-wheel hub cap comes off. Briefly the plain black wheel is seen. While going over the cliff, the hubcap is back, and is seen to be back on when the Caddy flips into the pool.
Picture edited by Super Grover