Mercedes-AMG C 43 vs BMW M340i: A Sporty Sedan Showdown

Sports sedans like the Mercedes-AMG C 43 and BMW M340i inject a potent blend of performance and everyday practicality into your daily drive. These German machines excel in delivering adrenaline-inducing experiences, each with its unique set of attributes and characteristics. Rather than evaluating these cars solely on their daily merits, we delve into their sporty credentials, highlighting their powertrains, performance on the track, design, and overall driving experiences. Join us as we compare and contrast these spirited sedans to determine which one reigns supreme in the realm of exhilarating driving.


Under the hood, the Mercedes-AMG C 43 features a 2.0-liter turbocharged petrol engine (M139) producing 408hp and 500Nm of torque. This engine boasts F1-derived technology to reduce turbo lag and enhance responsiveness. In contrast, the BMW M340i houses a larger 3.0-liter six-cylinder turbo petrol engine generating 374hp and 500Nm of torque.

Both cars employ rear-biased all-wheel-drive systems. However, the C 43’s rear-axle steering enhances agility at the expense of added weight, making it about 60 kilos heavier than the BMW.

Performance Comparison

In a drag race, the BMW’s six-cylinder engine initially outpaces the AMG, but the C 43 benefits from its F1-inspired technology for a strong start. Ultimately, the M340i’s sheer power helps it overtake the C 43 and win the race despite similar acceleration times.

In rolling races, the BMW’s responsive 8-speed torque converter gearbox proves advantageous, complementing its superior engine performance.

Track Timings

On the race track, the BMW M340i demonstrates impressive straight-line speed and power, although its all-wheel-drive setup leads to some understeer. The car’s weight affects its cornering ability and responsiveness, according to Narain Karthikeyan.

The Mercedes-AMG C 43 offers a more track-focused experience with sharper handling and a firmer setup. Its turbocharged four-cylinder engine delivers linear power delivery but feels more strained at higher revs.

Design and Interior

Externally, the Mercedes-AMG C 43 stands out with its attractive design, especially in a striking shade of red, and features eye-catching multi-spoke wheels. Inside, it offers a modern cabin with large screens, carbon-fiber-like trims, and comfortable seats.

In comparison, the BMW M340i presents a more conservative design, though refreshed recently. Its interior is highlighted by twin curved screens but lacks the novelty and comfort of the AMG’s cabin.


The Mercedes-AMG C 43 impresses with its driver-focused dynamics, modern design, and advanced features but comes at a premium price. On the other hand, the BMW M340i offers exceptional value with its potent six-cylinder engine, strong performance, and lower cost, making it the preferred choice for enthusiasts seeking a thrilling driving experience and excellent straight-line speed.

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