It's a little disappointing, but I'm sure the FIA will allow the Z4 GT3 to become a GTE car replacing the M3. They bent the rules by allowing the Viper to run a 8 liter even though only 5.5 liters is allowed. When you make one exception, another will be made. Now it comes down to cost. Also, you all are forgetting that BMW is just starting the DTM. The start-up costs are always the highest. I can understand why they didn't go to Le Mans, but it's still saddening especially when Audi flaunts 4 P1 cars, 2 of which have F1 technology.
Former employee of United BMW. I am now employed by Mercedes-Benz.