What is your car's rarest option?
Absolutely nothing about my car is rare.
The unsilenced air cleaner seams to be unusual on a 2bbl, rare?
The dealer optional wheel covers are rare, the rocker moldings are rare (but not factory, grandfather had them added when the car was a year old)
But quite possibly the rarest part on the car is the original license plate frame (if you have one let me know).
Alan