Mercedes-Benz has announced a new UK model, the S-Class AMG Sport Edition, which adds a number of cosmetic and spec changes to the basic model. The AMG Sport Edition is actually based on the ...

there's the B50S for the S550 that adds 65 horsepower, for a total of 520 hp and 604 pound-feet of torque; the B63 takes the S63 AMG up to 650 hp and 737 lb-ft; and the B63S rings the bell with ...