I've looked at the 4.8is, it really didn't change that much from the 4.6 in my opinon. I do enjoy the x5 a lot but the lure of that 500+ stock bhp in a cayenne is quite tempting. I have looked at the American competitors such as the SRT-8 and the Trailblazer SS. I am impressed with their raw power and their good performance, but I really enjoy the fit and finish of the Porsche, Benz and BMW in a performance SUV. I know the Turbo S is pricey, but considering the cost that I put in to buying the new 4.6, the ESS package and all the customization, I think I have hit a cayenne Turbo in price already. Another question for you all, how much is a 2003 X5 4.6is with 60000 km, every option, ESS kit making 10.5psi worth?

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2007 Jeep SRT-8 (going to be supercharged)
2007 Trailblazer SS
2003 X5 4.6is ESS supercharged
2004 Silverado SS supercharged
2005 Escalade supercharged
2003 Corvette ZO6 supercharged
1999 Mercedes S600