WTF?
Of course the discussion from the OP was about the auto p11 and questioning how slow it is compared to a p10 auto but it has since gone in different directions.
Basic fact is the BTCC p11 had independent rear suspension like the p10 and unlike our daily driver p11 in the USA.
Another basic fact is weight and the p11 is heavier than the p10.
Making the 'same' changes to make a race car is a moot point because the rear beam changes the rear suspension dynamics of course and then the weight is the weight (there is only so much weight loss possible on either p10 or p11 obviously)
Of course the discussion from the OP was about the auto p11 and questioning how slow it is compared to a p10 auto but it has since gone in different directions.
Basic fact is the BTCC p11 had independent rear suspension like the p10 and unlike our daily driver p11 in the USA.
Another basic fact is weight and the p11 is heavier than the p10.
Making the 'same' changes to make a race car is a moot point because the rear beam changes the rear suspension dynamics of course and then the weight is the weight (there is only so much weight loss possible on either p10 or p11 obviously)