Mercedes' updated E-Class coupe is now available in high-performance AMG trim, with both coupe and cabriolet versions on offer. The most important part of any AMG starts under the hood, and in the E 53 is a turbocharged 3-liter inline-six with EQ Boost. Power is up to 429 horsepower with an additional 21 thanks to the EQ Boost, good for a 0-60 sprint of 4.3 seconds for the coupe and 4.5 seconds for the cabriolet. Top speed for both models is electronically-limited to 155 MPH. Power is delivered to the wheels via 4Matic+ all-wheel-drive, variable torque distribution, and AMG's nine-speed SPEEDSHIFT automatic transmission. Outside you'll find an AMG-specific grille with vertical bars, restyled front bumper, LED lighting, and redesigned rear wheel arches for better aero. The interior features the latest MBUX infotainment system, an AMG Performance steering wheel, and a widescreen flat-panel display.