1996 dark blue Cali top. $1800
http://denver.craigslist.org/cto/4319621214.html 1997 light blue sport $3500
http://denver.craigslist.org/cto/4332391374.html 1999 hellrot sport s52 turbo $11500
http://denver.craigslist.org/cto/4296287023.html I am not affiliated with the owners of these cars.
PSA: when searching Craigslist for a 318ti, be sure to also input the same search with a space, like this: "318 ti". the first two listings showed up when I searched for "318 ti", but not "318ti".