One of my favourite art cars was the
1995 #42 McLaren F1 GTR.
When Hervé Poulain (the originator of the ‘Art Car’ movement) first retired in 1982, he gave all his trophies to renowned sculpturist César Baldaccini. César took the trophies and compressed them into a sculpture :
When Poulain came out of retirement to drive again in 1995, the sculpture was used to create the artwork for the car :