I am looking for your feedback or opinion on the following. i have a 1995 325is with 149,000 miles on it. I also have a 1987 325is with 159,000miles on it. Both cars are zero rust, completely stock cars. I am an experienced race car fabricator/driver, but a novice road racer. Which car would be the best to build into a IT/ track day car? Please give consideration to build cost, maintenance, chassis tuneability, competitiveness , resale, and any other variable that you would think that may be pertinent to this discussion. I have read a lot of iformation and am conflicted as to which car would be the better build. Thank you for your thoughts and ideas.