I do like the range rover sport but they have there own mechanical problems. Not as much as in the beginning but they are almost never mechanical pain free.
I have read a very nice article and road test between the cayenne gts, range rover sport, mercedes ml500 and the bmw x6.
I am not a big fan of objective car test because you cant look at a car objective. your car can be rubbish and completely un-practical but you love it and thats all that matters. but I will give the results anyway.
Ml 500 was first but only because its the most practical and spacious (3062 points)
2nd the X6 due to its fabulous driving skills and overall performance (3060)
Third the cayenne gts great handling too but high pricing (2999)
Last was the range rover V8 it was the worst at all the subjects like interieur/comfort/handling/motor and transmission/price and environment.
Thing they forgot in my opinion is offroad qualities then the range rover would leave the others way behind
But dont get me wrong I do like the overall look and ride. just wanted to inform you.
mv agusta+ferrari =perfect world