Redesigned for 2023, the Mercedes-AMG C43 4Matic sedan features new styling and a fresh interior. The biggest departure, however, is the switch from a twin-turbo V-6 to a turbocharged four-cylinder engine.
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The new C43 has a downsized 2.0-liter four-cylinder turbo engine producing 402 hp thanks to an electric turbocharger. It replaces the 3.0-liter twin-turbo V-6 that made 385 horsepower in the outgoing car.
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The C43’s turbocharger uses an electric motor that can directly power its shaft. This reduces response delay and allows the turbine to keep spinning even with the engine off-throttle as a high-tech form of anti-lag.
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AMG says that the turbocharger can also regenerate energy from high-speed exhaust gas flow, although it only does this for brief periods. More regeneration comes from the 48-volt belt-integrated starter-generator that adds hybrid contribution to the engine at lower speeds.
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The new engine is effectively a north-south version of the transverse-mounted M139 turbo-four that powers AMG’s 45- and 35-branded models.
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A nine-speed automatic gearbox features both a wet clutch in place of a torque converter to improve responses and a launch-control function. The standard all-wheel-drive system has a fixed 31:69 front-to-rear torque split.
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AMG claims a 4.6-second time run to 62 mph for the C43. That seems pessimistic to us, as we ran the previous C43 coupe to the 60-mph benchmark in 4.1 seconds.
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As with other AMG models the C43 comes with multiple dynamic modes.
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In the U.S., 19-inch wheels will be standard with 20-inch rims an option. Adaptive dampers and an active rear-steering system are also included.
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Mercedes won’t be offering a coupe version of this C-Class, so we will only get the C43 sedan. Other markets also get the choice of a stylish, practical station wagon variant.
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U.S. sales will start in the last quarter of 2022.
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