Got both my ///M5's up for sale.

Really interested in a clean second hand E55 AMG.
Damn, this car is fast

Made my E39 feel like a Fiat Punto.
Have to say, I'm being swayed by its sheer steamrolling power.
What have you guys got to say to prevent me from committing M suicide?
Whom I going to argue with over 5W30 oil vs 10W60 on the MB Forums?