Hi - just looking for some advice and recommendations

I have done quite a bit of searching on forum regarding spacers and offsets for both NB and WB cars.

Car is a C4S that is on lease until 4/12 - about 30 months. If it is returned, I will most likely get C2S or GT3 (a narrow body). Primarily driven on street, and 15-20 track days per year.

I am looking to get an extra pair of wheels so I can utilize car throughout winter months in New York (19"Pirelli Winter 240 Sottozero Serie II - any other recommendation?) and put on a pair of Sport Cups for the track.

Do I just buy another pair of Carrera Classics with 51 offset in rear, or purchase them in NB offset and use 15 or 17mm spacers to compensate. Will the slight (67-17=50 or 67-15=52) difference when swapping wheels require any alignment. Is removing the spacers annoying enough that I should buy the correct wheels and sell them if I get NB car next?

Pros / Cons

Any input appreciated.

 

Regular Pilot Alpine 2 tires on stock width 18" rims.
Look on craigslist for 18" rims - original takeovers can be found very cheap.