Excellent find Luwar.

Okay fine...maybe the TT will not rip a hole in the SLR *cough *cough but the 997 GT2 will totally annhilate the SLR.

We always seem to get off topic so badly. Somone says one thing and it sets everyone aflame. Who cares if the SLR get's beat by the 911 GT2 or whatever. I think it's been established that the SLR isn't the best track car already. That's how it is with every MB sports car. But the fastest track time isn't what it's about. It's more about the engine more than anything else.

hell i wouldnt mind being ripped to shreads by a GT2 or 997 TT.. its no shame in that..
those car will rape almost 85% of the cars in production..

Currently BMW's 'M', but I must admit the tides are slowly changing. Audi's RS4 is just as good if not better at delivering exactly what a petrol head wants out of a car.

the one you show above is a GT2 and not TT. Also you only say rip a hole in the heart and noone know if you mean on a track or straightline accelertaion. Acceleration only and SLr will rip a hole into 997TT

with that said lets stay-on-topic ,,

I voted for AMG. I have not driven an S or RS so I am not fully qualified to vote but I have driven both an M5 and an E55. My vote does not mean that M is inferior to AMG.
What it means is that AMG differs more from the regular Mercedes than an M5 from the regular 5 - series. At least that was my observation when test driving these cars. The normal Mercedes throttle response is really lazy compared to the AMG car. The M5 was merely a few steps up from the next model down in the 5 - series cars. The difference was not as pronounced as in the E55 vs. E500.
Some of the previous comments have made mention of Porsches so I will also put my 2 cents in: I have also test driven a 993 Turbo, and neither M nor AMG can hold a candle to this car. The experience is exhilarating.

did you drive the latest M5 or M6? I have and its a huge difference compared to standard 5er.

I am going to go with S/RS

In the automotive history these three brands have all shared their times where they have exceeded others in expectations and performance.

For me I believe that BMW is heading towards a very conservative approach in power and concentrating on other issues like power to weight ratio.

MB is like the one who likes to shoot steroids into the animal without every thinking about it. I mean look at the SL65 and the CL65 those things are animals. Either way I really don't think that they possess the fire that BMW once possesed.

Audi seems to be the one that is taking BMW old position and showing a growing fire within their factory. The new RS4 is a testament to that and I really can't wait to see the future cars they bring out. In addition to this they are doing it Naturally Aspirated.

No, this was one model back. So, I was comparing an M5 to the same year model 540. I can't remember now which model year it was for sure (must have been 2002 or 2003), but no, I have not driven the latest M cars.