http://automobilemag.com/reviews/0411_bmw_m5/index.html
Quote: "While most comparable powerplants emphasize either power or torque, the V-10 plays both ends exceptionally well. As a result, its sweet spot ranges almost from standstill to top speed. There are virtually no dents in the torque curve and no deflections in the rpm ladder, there is no ratio too short or too long, and there is relentless dynamic and acoustic stimulation."
I wish I could own one even if it was for one day