I know back in the ealry 1990's here in Sydney, the weapon of choice was the HPI McLaren and the HPI NSX. I must admitt the McLaren was the best for overall handling and plenty of downforce.
The Bugatti EB10 is also good, plenty of people are using them in Japan.
Can someone put a pic of that ENZO body there testing ?? Is that the Protoform FX ?? I love Ferrari