RS5

If you need me to define 'crisp lines' for you, you either lack the intellect and vocabulary of an educated person and/or have not read as much as a decent review of a car, as the term is widely used ...

Look up the specifications. The Mercedes ML 550 and ML63 AMG get 0-60 times that are better than any time the X5 and the X6 are able to achieve. And none of the competition SUV's come close? Have you ...

I said the X5 is a relatively slow vehicle compared to other vehicles in its category such as the ML and the Cayenne. What is the car that you are talking about that has a 0-60 time of 4.5s?