[oldman]

even stock off the show room floor, the M6 could not be driven fast by stomping it. I was one of the first to show that sub 4.0 could be done with a M6 near stock on run flats and with a few bolt ons 3.8s could be done. With over 1000 WOT runs, I will go out on a limb and say few people can actually put this kind of power to the ground ( 700 up engine) with normal 220 wear summer tires and NONE if it is WOT below say 70 MPH... I do agree that speed builds quickly and in general I shut off at about 90 to 100 MPH (speed limit here is 85 MPH). So really we are talking about the ability to use WOT 2 to 4 seconds.

DR, 555R, 888, MT ( 0 to 100 wear) tires probably another story, adding another usable 100 engine HP and 30 MPH or so of WOT before 100 MPH. I do like the curvy back roads which are fast disappearing here, so the PS4 offers that. I don't know if I'm willing to trade that for more hook. I have long ago realize there is always faster, I just need in general to faster than the other DD around. I would already admit the M6 gives up a solid .5 in any condition on the street (don't know about the track), so obviously tire choice and transmission choice is part of how much HP is streetable. Streets here are pretty nice, flat wide, smooth, moderate traffic (use to be NO traffic).