More on the mystery, I posted the car on HRW and got this from Chris Walker:
Hi Reek, nice find, and a great looking car!!
I don't want to burst your bubble. but, Cox did not produce a 2E in 1/32 scale.........The body is a SCX 2E with what appears to be an early Riko chassis, with a wing and actuator either fabricated or pirated from a Cox 1/24 2E
Attached is a pic. (small, I apologize) of an SCX 2E.
Great car regardless!!
Cheers
Chris Walker

PS I just dug up a pic. of a Riko chassis that is very likely the chassis under your car..........on your car the side pans on the Riko have been removed for clearance. In their day the Riko chassis' were quite potent, and with a bit of tuning they did very well, particularly in club racing..........well sorted, they can still easily hold their own today.

chrisguyw