Hi Scotty, I am looking to buy either Mercedes 2005 E55 AMG with the Supercharged V8 or 2007 E63 AMG…

Hi Scotty, I am looking to buy either Mercedes 2005 E55 AMG with the Supercharged V8 or 2007 E63 AMG with a 6.3 NA engine. I know you don't like German cars cause they are expensive to maintain, but of these two, which engine is more reliable? and which would you choose?
Thanks!

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