"Uncle Phil has really deep pockets so he decided to sponsor the four Lamborghinis run by Insight Motorsports. :D
The different colors are based on the car Rosberg raced at Estoril in 1986 where the red was changed to yellow to advertise Marlboro Lights (later changed to Gold). I added green (Menthol) and Silver to have a proper roster of cars for endurance races.

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