I hear ya Yeah, if you revved your's right out the graphs would look way more in your favour. Just going by the graph you posted the cars seem to have the same amount of useable revs which would negate your comment about low rev corners, because with the correct gearing in each car you might drop down to 3000rpm for a corner and the GTR would drop down to 5000 for the same corner. But since your rev range actually does extend as far as the GTR it is by far superior
