Unlike the S550, which had a mere 382 hp, the P30-package-equipped S63 brings 563 hp and a whopping 664 lb-ft of torque to the table courtesy of AMG's new 5.5-liter twin-turbo V-8 workhorse. Given the ...
We knew the Mercedes-AMG S63 E-Performance was quick, but it completely dominates this showdown with several rivals.
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