I currently drive a 2007 M5 and really want to get into the Evo world. I'm moving to Montana and hoping to get one before then. I've looked at MR and GSR but haven't really noticed much difference aside from the transmission. Is there more to the different trims? If I got one, are these motors built well enough to take a ton of boost or would I need to do a complete rebuild? My car now costs a ton of money even for an oil change so maintenance wise, what kind of costs are we looking at and are there any major problems with the evo? Thank you!

 

Welcome. You have a lot to read up on so sit a spell!