[MidnightM3]

Any late 2010+ e92 M3 with 100k mileage is a steal at $20K depending on condition, color, options, setup and mods. Most of the 2008 to early 2010 pre LCI are priced on the lower end these days, but have some slightly dated tech designs and options (i.e. Navi, iDrive, Tail lights, also detection of a possible Rod Bearing issue "working out the kinks in the early years" etc...).

Depending on how the car was driven and taken care of, these cars are very reliable and an experience in any year.

With a Rod Bearing replacement and up to date service, drive the e92 to 200k+. Although I love the e46s, go e92, but account for a professional Rob Bearing service in the range of $1500-2500 or use that as negotiation with the owner if it hasn't been done. What else has been said above is spot on.