Duller Motorsport will race a new Z4 M Coupe in the 24 Hours of Spa (FIA GT race) later this month in the G2 class as it is not homologated. ACO rules say that a rear wing on a GT car must be within the length and height of the car and the wing is cleary past the length of the car and right around the height of the car. The short rear overhang doesn't help.

Test day for the 24 Hours of Spa