This was a commission job by a Mattel Design employee.  I made 3 Emoola Firebirds based on the same Funny car driven by Bruce Sarver.  Two in 25th scale (top) and one in 18th scale (middle).  They turned out very nice I think.

One of the  25th scale cars you can see the signature from Bruce.  I was able to add graphics and paint to it without losing the signature.