Welcome to Prime; your NSX looks beautiful. 5k in a month! Red with black roof is still the best colour. It's too bad they dropped the black roofs when they went to the targa top. I'm just down the road from you in Ontario.
Chicago winter sounds brave. I can't handle leather seats without heaters any more myself. (Did they add heaters eventually? My '95 lacks them & your pic looks pre-1995.) We get a LOT more accidents here in the winter as well...
Aluminum body won't rust?!? Technically that's true since rust is iron oxide and aluminum does form a protective covering of clear aluminum oxide. But do they use road salt in the winter in Chicago? The salt they use here in Ontario Canada corrodes aluminum very well (and steel). Aluminum bike frames & components - toast. Out west, I understand they don't use salt since it's frequently to cold for it to work effectively so they use sand, so vehicles don't get so damaged (except for all the windshields...) Maybe @
Oldguy can chime in with his winter experience.
But there are also LOTS of steel parts like radiator brackets, hood latch mechanism, ABS accumulator, a zillion bolts, brakes lines, and a whole pile of things in the engine bay. Amayama prices are reasonable for replacing all the rusted steel bolts & brackets, but shipping is a b****.
It took quite a while to clean up and repaint my steel brackets/headlight retractor mechanisms, and they had never seen road salt; I can only imagine what they would have looked like had they been as exposed, and I expect they're not cheap to replace.
My .02