While this might look like the ‘24 Hours Du Cadwell’ – it’s not.
It’s actually a showdown between one of the world’s greatest GT racing cars, the McLaren GTR, and it’s then new successor, the P1 GTR.
The film was produced by McLaren Cars in January 2015, ahead of the P1 GTR’s launch at the Geneva Motorshow in the March, where it took centre stage alongside the newly announced 675LT.
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You can also watch this film at the source.