G55AMG is a professional modified engine with a displacement of about 5.5L It is a famous product of "one engineer, one engine" of Mercedes-Benz. The signature of the engineer in the middle and upper part of the engine represents a promise. G500 is a V8 engine with a displacement of about 5.0L, which is essentially different from its engine. In order to adapt to the strong power tires of G55AMG, the rims should be professionally modified. Both cars have three differential locks. If you are a cross-country enthusiast, it is good to buy a G500. There is no need to buy G55AMG. If you happen to be a fan of professional modified cars, you can buy a G55AMG and enjoy its madness, but its price is much more expensive than the G500, about 2 million. It is also a well-deserved "gas tiger".