To galvanize this discussion, I was running my old Police package at E-town this weekend and put a couple of low 17.90's on the board during trials. Took the heavy tool box, spare tire, jack and other misc stuff out of the trunk which accounted for at least a 100 lbs, and clicked off 17.60's and high 50's for the rest of the day.
My lane was sticky all day long, so no abuse to the puny 8.25 Police rear end. LOL.