Every Mark I have ever driven shifts at 6300RPM, but I am on my GT tune which stops it at 6K. Here is a 0-80MPH video of my car and you can clearly see it almost at 6K at 64MPH. I do have 17" wheels, so that may be whats throwing it off.

http://www.youtube.com/watch?v=V7J0tcDjlwY

 

I was doing the calculation with 245/45/17 tires. So if you have smaller tires then that it will make a difference.

 

255/40/R17.

 

Yeah, 69mph gets you 6029RPM's with your tire.