Plenty of celebs were on hand for GM's Annual All Car Showdown, but the ones that actually entered the competition looked to be having the most fun.
Adrien Brody, Stacy Keibler, Travis Barker and Jeremy Piven were on hand to enjoy the show - but a few others really participated by bringing their own distinctive whips.
Shaq showed off his black Escalade, tricked-out in a police style. Snoop Dogg won "Best Interior" for his 1966 white Cadillac "Snoop" Deville - complete with three chandeliers.
But our favorite is Ludacris' 1954 multicolor green Chevrolet Bel Air, for which the rapper/actor won "Best Exterior".
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