Peter Flack 
2015 BMW X5 M SUV 4dr SUV AWD (4.4L 8cyl Turbo 8A)
X5M versus Cayenne Turbo
 I have now been driving the X5M for close on three years and have grown used to its foibles. The performance and reliability are excellent but the software and related technical aspects are a pain and I defy anyone to remember how to use all the different nick nacks. If I have a gripe, it is the suspension which, although it is better than the previous model - it could not have been worse - is still substantially worse than the Porsche Cayenne Turbo with which it competes. They have tried to substitute big rubber for suspension sophistication and it does not work. There is also no ride height adjustment which the Porsche has and this seriously limits the car's off road ability. It is a good car on tar make no mistake, just not a great one and off-road it is a joke. In a nutshell, in my humble opinion, it is not worth the price and I will not buy another one.