My faves
Street cars:
1. Porsche 930's with many classic liveries I've done
2. SRT Viper GTS fully tuned and modded with racing liveries
3. AMG GTR street car with racing liveries as well. (most done before the updated racing car)
4. Porsche 993, 997's with racing liveries.
5. Ferrari F40 with GTE liveries
6. Fugu Z's with liveries
RACE CARS:
1. Mazda 787B/LM55, Porsche 962, Nissan R92CP, Jaguar XJ-9
2. SRT Viper, Porsche RSR, AMG GT3,
3. Pagani Zonda, Mclaren F1 LM/longtail, Porsche GT1,
4. Audi R18