The Mercedes-AMG C43 represents a shift in AMG’s approach to performance vehicles, combining innovation with a smaller engine to redefine what the brand offers in the compact sports saloon segment. Drawing on AMG’s heritage of four-cylinder engines, which began with the A45 in 2013 and echoes the iconic 190E 2.3-16 and 2.5-16 models of the 1980s, the C43 blends cutting-edge technology with a nod to the past.
Downsizing with Innovation
At the heart of the C43 is a longitudinally mounted, turbocharged 2.0-litre engine—a bold move in a class that often favours larger powertrains. This engine, coupled with AMG’s signature 4Matic four-wheel-drive system, showcases the brand’s ability to innovate while embracing a downsized format. The C43 also sets the stage for the upcoming C63 plug-in hybrid, which will build on the same engine but with increased power and hybrid capabilities.
The C43’s standout feature is its Garrett 48V electric turbocharger. This cutting-edge component employs a compact electric motor that spins the turbo’s shaft at speeds of up to 175,000rpm, offering up to 8bhp of electric assistance. This motor not only eliminates turbo lag by maintaining boost pressure during gear changes and throttle lifts but also harnesses up to 4kW of energy from exhaust gases, with additional regenerative power coming from a 48V starter-generator.
Performance and Power Delivery
The engine delivers a robust 402bhp and 369lb ft of torque, channelled through a nine-speed automatic transmission. AMG’s wet-clutch system replaces a traditional torque converter, improving responsiveness. The permanent torque split of 31:69 between the front and rear wheels ensures balanced handling, while standard all-wheel steering enhances agility. Active dampers further refine the driving experience, making the C43 adaptable to varying road conditions and driving styles.
The electric turbo’s influence is evident from the driver’s seat, delivering immediate throttle response with minimal lag. This technology ensures consistent power delivery across the rev range, although during testing, the engine struggled to reach its redline of 7,000rpm, with peak power arriving at 6,750rpm. Nevertheless, the C43 achieves impressive acceleration, clocking 0-62mph in 4.6 seconds for the saloon, with the estate version trailing only slightly at 4.7 seconds. The race-start mode guarantees repeatable, exhilarating launches.
Refined Yet Subtle Design
Visually, the C43 maintains a restrained aesthetic. Distinguishing features include horizontal slats on the radiator grille, subtle sill extensions, and a modest bootlid spoiler. At the rear, four exhaust tailpipes make a bold statement, though they may appear exaggerated for a four-cylinder engine. These elements ensure the car stands out without being overly ostentatious.
Sound and Cabin Acoustics
One of the most noticeable differences in the C43 is its departure from the traditionally aggressive sound profiles of AMG models. While the four-cylinder engine produces a pleasant and sporty tone, it lacks the visceral roar that defined its predecessors. In its sportiest exhaust mode, the car emits satisfying pops and crackles on overrun, some of which are augmented by the sound system. At high speeds, the cabin remains impressively quiet, offering a refined driving experience.
Driving Impressions
The C43 is not just about straight-line speed; it excels in delivering a dynamic and engaging drive. The inclusion of all-wheel steering allows for sharper cornering and improved stability, making it agile in tight spaces and composed on the open road. The suspension, equipped with active dampers, provides a balance between comfort and sportiness, adapting seamlessly to the driver’s inputs and road conditions.
