It was only a matter of time before this SL55 hit that coveted 9-second mark.

Performance numbers for the AMG E63S and BMW M5 are closer than ever.

The new M5 and the E63 S are surprisingly well-matched on paper. Time for some head-to-head action!

Rear-drive E63 pulls on the top end in a battle of 549-horsepower AMG sedans.

A handful of modifications allow this AMG SL55 to beat the 616-horsepower Bentley in a close drag race.

Ferraris and Lamborghinis are no match for the AMG C63 and E63.

With just exhaust mods and a tune, this Mercedes-Benz SL63 AMG packs enough power to beat up a Hellcat Challenger in a half-mile roll race.