e55 is 5 speed auto and more torque. e63 is 7 speed auto and more hp and less torque. Any differences? I know both are very very fast.

 

This is a really hard question and I would suggest searching for earlier forums as this usually starts a fight between E55 and E63 owners. They are both fast and according to tests they are almost equal. Depending on the test you will find different results. Event their appearence is very similar (E63 slightly more aggrressive). I think the main question is how much do you want to pay and do you want the newest AMG model and do you want to mod? E55's are easier to mod.