Hello Everyone, I have been thinking of buying either a 550 or 575. I have gone and driven both. But this past weekend I went and drove a 575 F1. WOW. This trans works very well with the power of the V-12. I have been very surprised and now am buying my first F1 F-car. I am looking at learning everything about this car. All comments welcome. I am interested in what other owners have discovered. Thank you.