Mercedes-Benz C63 vs Audi E-Tron Gt

What's the difference?

If you know the Mercedes-AMG C 63 S, you know it’s a hardcore V8 thumper with little in the way of bashfulness. It’s a brawler. A beast. 

Now there’s an even more eye-catching AMG C 63 S Coupe, which we’re testing here. It’s the Aero Edition - a collector’s version of the current-generation C 63 S Coupe with a bit more visual bling that also helps it stick to the road better.

It is a local area special edition, with only 63 examples to be sold across Australia and New Zealand. And if the rumours are true, the next-generation will see the V8 engine in danger of being axed in favour of a hybrid, high-performance four-cylinder version. Say it ain’t so! 

Well, if the CarsGuide crystal ball turns out to be right, maybe one of these C 63 S Aero Editions is worth getting in your garage quick-smart. Or is it? Let’s go through the criteria and see how it stacks up.

It can be easy to dismiss electric cars as an imperfect solution to the world’s problems. But that would be missing one big point - they’re really, really fast.

Carmakers twigged that not everyone was enamoured with the environmental credentials of electric vehicles (EVs), especially luxury brands, and thus pivoted to the new sales tacit of performance and prestige.

Which is why Audi’s current performance flagship vehicle is not a mid-engined V10-powered replacement for the R8, but rather the all-electric RS e-tron GT. And for the new model year they have not only updated the range, bringing (you guessed it) more power, but also added a new hero model - the RS e-tron GT Performance.

It leads a new three-pronged line-up for the four rings brand, with the RS e-tron GT Performance sitting above the RS e-tron GT and the new S e-tron GT; the latter effectively replacing the previous ‘entry-grade’ model known only as the e-tron GT.

These arrive as part of a mid-life update for the model, with some minor styling tweaks (inside and out) along with enhancements to the battery and changes to the specifications.

The new range has just arrived in Australia and Audi will be hoping it can turn around the sales performance, which saw the outgoing e-tron GT and RS e-tron GT find just 84 customers in 2024. That was a decline of 75 per cent on 2023 sales, and nearly 200 less than the closely related Porsche Taycan.