[YENKO DEUCE REGISTRY]

[ QUOTE ]
The cross ram and rear disc were parts that could be bought over the counter at that time for racing purposes(such as Trans Am), but could not be ordered as a RPO for a street vehicle.... Pete's rag top Z was an experiment in the feaseability of these hi performance add ons having the ability to function with some degree of normal operation in traffic conditions. The package passed the test and was then introduced as a dealer available RPO.
Thanks,
Motown

[/ QUOTE ]

So what's the verdict, were the parts available and this car a perk? Or, was the car an R&D effort?