Thank's for the information so far. I went up for a look at the car one day last week, but they where close and as I saw it I worked out the livery was wrong, I have now watched back Le Mans 1988, 1989 and 1990 on video this weekend to confirm this.
Now I have posted the same information on another forum and someone says that the car has a rear wing is from the 89-CV, the nose is from a 90-CV.