The 2010s-era Mercedes-Benz CL-class grand tourer got the AMG treatment in the 00s and ended up with a 6.3L V12 that put out 437 hp, along with the usual array of high-tech features, a tweaked suspension and brakes and the M-B commitment to quality and engineering. Your M-B CL63 AMG would have left the factory with Pirelli P Zero tires as OEM.
When it’s time to shop 2010 Mercedes-Benz CL63 AMG tires, remember that this make/model uses a staggered fitment, with different tire sizes in front and rear. Rear tires could be 275/35ZR20 or 275/40R19, and front tires could be 255/35ZR20 or 255/40R19. Our recommendations would be for premium all-season tires like the Goodyear Efficient Grip ROF, Pirelli Cinturato P7 All Season or Michelin Primacy Tour A/S (with 55k mile treadwear warranty). For more spirited driving, there’s summer and ultra-high-performance tires like the Michelin Pilot Sport PS2 and Goodyear Eagle Exhilarate.