http://www.rs6.com/forum/showthread.php?t=12429
Here is the post made by one of our members, but I thought I recalled a previous test showed more variation in torque figures. Anyhow, all this really shows is the RS4 having more of a volcanic increase in its torque versus the R8s gradual increase. It also seems as if the R8s torque holds on better at higher engine RPM, but there is too little variation in this graph to be 100% on that.
~Mason