@bilaltq, and the others,
I totally disagree with you. the q7 3.otdi, is a powerful machine, you can use it's 500nm torque between 1750-2300rpm, i have dashed it out to 210kmph on m2 couple of months back. audi's 3.0tdi and above diesel are the best production diesel engines to date.
you have a biased opinion. rs4 is a beast too. i have test driven the a5.3.2 fsi, the a8 4.2fsi and rs8 as well. audis are better than bmws and mercedes in a lot of ways. the 530d, cls 350 and the e-class barely moved me, but, having said that the s-class and the all new 7series have impressed me.
you call youeself a motor enthusiast???? think again.