Copy your Wheel_bridgestone files x 3 somewhere and rename them to Wheel_Mclaren and paste them back in, do this to the Standard and the High folder.
Also paste this into your 2006.csm notepad file
From this:
Tyres =Tyres\%rimtype%\%tyreres%
to this:
Tyres =Tyres\%rimtype%\%tyreres%,Tyres\%rimtype%\%tyreres%
Worked for me
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"When you begin in this sport you are given a chequebook. Every time you have a big one you must write a check to the angels. The trick is to finish your career before you empty the chequebook".