182 vs 197 vs 225 as a track car costs and comparisons

[Z4MCSL]

As the price of good 182s is creeping up I am starting to look are 197s and 225s as an alternative

Interested in the pros and cons

And costs as the 182 costs for parts and stuff looks very cheap

I'm expecting to keep car pretty standard as want to use occasionally but its not gonna be my daily

Any thoughts massively appreciated