well it's rear wheel drive so keep that in mid (you do live in Toronto)
I've heard that the 7 series have problems. Do you research call dealers and ask, and read post and threads on how the service is. You wan't to buy a car that's going to be a problem.
2008 M3 Sedan + TestPipes + Tune [sold]
2012 CLS63 AMG + P30 Performance Package
2014 M6 Coupe + AMS Downpipes + KW V3