Regrets
It is all about what you like, I personally love smooth sily shifts but if you like the harshness of the SMG the the M5 is your car.
One thing to share, one time I was laping on Mosport, one of the American Le Mans Series track in Canada, after 7-8 hot laps in manual mode, my tranny was upset, then it went to limp mode(stay in S mode), 10 mins later, it came back, everything was alrite
Last edited by Earlyapex; Sep 16, 2009 at 01:05 PM.
C63 transmision I love but there is big difference from SMG when you go to track. On C63 you cant shift down 2 at once you have to shift down one by one but for SMG you press down 2 times it goes down fast. So this part was very good on the track but on the street like on C mode on C63 SMG was really bad. Over all I think C63 is very good. I like it.
M5 is very good car that V10 sound is great.
That being said, if you have a good relationship with your Service Advisor, you can work around these issues with ease.
Also, an ECU tune is really invisible. What you have to worry about most is them doing an ECU update that overwrites your MODDED ECU tune.
Now, if your engine blows up, MB can send techs out to determine the cause before doing any warranty work....and those techs might find the ECU tune.






