I know what you're saying but the point of me posting the video wasn't necessarily to compare these 2 cars inparticular but more to highlight the difference or lack of, on a track scenario between RWD and 4WD
BMW with less bhp, putting the drive through the rear wheels was faster around a track and it wasn't even the M-Sport model which i guarantee would have been a second faster. That is the point i was highlighting and asking the queston why people think that is the case?
Statistics are clearly only half the story and in this case all 4WD did for the S5 was throw away it's power advantage. So in a performance orientated car, if it can't do the business on the track... What's all the quattro trickery there for?
If i was Audi (which i'm clearly not) i would consider looking at 'reverse' Haldex. Bang most of the drve to the rear, say 80/20 and then allow it to be up to 100% transferable to the front if and when needed. All the 50/50 balanced quattro seems to do is steal power and as this test proves, on dry tarmac it serves no real purpose.
Ok, I get what your saying, but to truly compare the merits of 4wd v Rwd , you will need identical cars, engines, tyre prsssures, driver skills etc, but one would have have 4wd and the other Rwd.
Different makes of car, different engines, chassis set-up etc etc....is far from a conclusive evaluation of whether 4wd is, or isnt quicker than Fwd. Without a level playing field then such a test is no more than a point of conversation point IMO.
I think we would all agree that 4wd alone doesnt make it a quick car, there a many other elements to factor in..
Agree though that Rwd is a laugh though, Ive driven my mates M3 a few times in the wet and dry and its brilliant, but a right handfull in the wet , even with TC on.
Was watching an old Top Gear on Dave few weeks back and Clarkson made a good sumation of the M3 v S4.
The M3 was a hoot and the one to have a laugh in and take to the track.
But the S4 was the one top have day to day.
Im guessing that was to do with the sure footed qualities of a powerful 4wd car.
Cheers, and have fun giving those demo cars a work out.
paul