Ok so i have 20 inch rims on my 06 g35 they r not staggered i put away my nice 20 inch staggered all black rims away for winter n put these other scratched up 20s for winter kuz idc bout em anymore that i got my new ones.. now i was thinking of getting winter tires on the scratched 20s someone told me itll b hard to find. Is this true? What kind of winter tires can i put on 20's ? Not looking to spend crazy money either but im not cheap about it any suggestions?

Hard to find in anything but a truck sized tire. IE 255/50

Buy some 17" steelies or run the stock wheels. 20s in the winter is stupid.

^ summed up.
Find some stock 17's or 18's and get some good winter tires. You want some sidewall to help aid in traction for winter tires.

Will be really hard finding snows in 20". Best to move into a 17" if your budget allows.