This is the new Mercedes-Benz AMG G63, and it meets its elder, the 2005 Mercedes-Benz AMG G55, which costs far less and still looks the same. Both are V8s, and both fulfill the role of an icon. But can the old one stack up, and is the new one worth the massive premium? James and Thomas jump behind the wheel of both to experience them and discuss them inside and out. Watch and enjoy. SUBSCRIBE!