As far as automotive rivalries go, few cars slug it out harder than the E63 AMG and the BMW M5.

Haven’t we all wondered what the real-world difference is between the older RWD E63 AMG, and the newer AWD model of the same name?

This 2007 E63 AMG certainly doesn’t look like it is almost a decade old.

The E63 AMG wagon is one of the most versatile, practical, and reasonable cars in existence. And this 2008 model for sale on the forums is an exquisite example.

Thanks to a leak, we now know the horsepower, torque, and acceleration numbers from the new Mercedes-AMG E63 and E63 S models.

The GLC63 AMG will be sure to completely change what you think of the performance crossover segment.

Our friends at Motor Authority recently spied this Mercedes E63 AMG wagon doing some testing, and the pictures are about as detailed as possible.