A friend, who autocrosses an 05 MCS in stock, found that his car as delivered had 1 degree of negative camber in front on one side and 0 degrees on the other. I thought he was stuck but my codriver in STX is a MINI mechanic and he said that the front sub frame is sloted for side to side movement (but not the rear) and was able to even out the camber.

 

Same thing happened to me. I had POSITIVE 0.4 camber on the left and -.7 on the right. We too adjusted the subframe and were able to get -.2L/-.4R. I'm not real happy with those numbers but not much can be done I suppose.

 

It could be more common than we realize. And with hitting potholes we can become more out of alignment.

The Bentley service manual for 2002-2004 states
Front camber specs are -0.30 +/- 0.25 degrees
Rear camber specs are -1.32 +/- 0.30 degrees

(max front and rear difference from left to right 0.30 degrees)

 

Any idea if the castor could be adjusted as well? My L and R castor are off .

 

No it cannot.
You'll need to add camber plates that allow for caster adjustment like
P&D plates:
http://helix13.com/html/products/pro...ew.php?p=1&h=m
$700 for the pair.
Not all camber plates adjust for caster.
When adjusting for performance try to get as positive a caster setting as you can.