I found this post from GTSPIRIT - Gumball 3000, Bullrun, Cannonball & MORE to be pretty informative:

We found 4 amazing Lamborghini video's, it about a drive from LOC to Marina Del Rey, in the USA, with 5 Diablo's 6.0, 1 LP640, 3 Murciélago's, 1 Murciélago Roadster, 1 Diablo VT Roadster, TT Gallardo!
As the maker says: "Everything went fine except from the 3 unexpected black and whites."
Just watch this and enjoy the sound of heaven.

Video 1: meeting up at Lamborghini Orange County
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Video 2: getting ready for the action
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Video 3: some more motorway action
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Video 4: enough said
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Found at: GTSPIRIT - Gumball 3000, Bullrun, Cannonball & MORE