Zero to 100km/h in 4.7 seconds is probably AMG enough to warrant renaming C450 as the Mercedes-AMG C43, a badge-swap timed with the release of this sedan-supporting coupe bodystyle.

The C450 Sport launched overseas last year – we drove it here – but that badge will never arrive on our shores following a late naming change for both sedan and this newly released coupe version.

“[C-Class] starts the introduction of a whole series of new 43 models this year,” Mercedes-AMG chairman Tobias Moers announced in a statement.

Mercedes -AMG-C43-Coupe -revealed -rear

In other words, the C450 AMG Sport was inconsistent – and arguably too long – and the Mercedes-AMG C43 will gel alongside the forthcoming Mercedes-AMG SLC 43, the renamed facelift and turbo-six-powered replacement for the SLK 55 AMG.

Both C43 sedan and coupe utilise the same 3.0-litre twin-turbo V6 engine producing 270kW and 520Nm, but the two-door version is also two-tenths faster from standstill to the 100km/h benchmark.

Mercedes-AMG C43 Coupe interior

“AMG developers managed to reduce substantially the shift times of the [Mercedes-Benz] nine-speed transmission,” the brand said in a statement.

“The multiple downshift allows even faster short bursts of speed, while the double-declutching function in the Sport and Sport Plus transmission modes makes for an even more emotive driving experience.”

Mercedes-AMG C43 Coupe rear 2

Variable-ratio speed-sensitive steering is standard, as is AMG Dynamic Select driving modes and AMG Ride Control multi-mode adaptive suspension.

The Mercedes-AMG C43 is confirmed to arrive locally in the fourth quarter of this year, with pricing of around $100,000 for the sedan and $110,000 for the coupe. One may arrive before the other, and Mercedes-Benz Australia isn’t confirming full specifications and pricing just yet.