I had the same experience, I came from a 350z and when I got the M I went to the same track i took my Z to and honestly it made me hate the car. I wasn't familiar with the track and the corners were really tight, made me hate the m3 as every car was passing me. Last week I took the car to Big Willow (high speed track) and the car blew me away, i fell in love
. I guess it depends on how well you know the track, the more difficult ones with a bunch of corners are a lot harder if your not familiar with the track especially with a heavy powerful car like this.