Get ready for yet another niche model.

Having seen the Mercedes-AMG GLC 63 out in the open testing on public roads, it doesn’t come as a surprise the folks from Affalterbach are also working on its coupe-ish counterpart. They travelled to northern Sweden with a slightly disguised prototype hiding a more aggressive front fascia featuring bigger vents to cool down the larger and more powerful engine. The camouflage appears to resemble the one we saw on the GT R while it was undergoing testing, but that doesn’t mean the high-performance crossover will look just as mean.

You can easily identify it as being a “63”-badged model by looking at its quad exhaust tips, while between them should be a diffuser, which this prototype did not have. Those beefy brakes are also a sign we’re dealing with the range topper in the GLC’s lineup.

Mercedes-AMG GLC 63 Coupe spy photo
Mercedes-AMG GLC 63 Coupe spy photo

In regards to what will power it, we know for sure the coupe-ified crossover will be blessed with Mercedes-AMG’s biturbo 4.0-liter V8. Whether it will have the same outputs as it does in the C63 / C63 S or it will have slightly more remains to be seen. Worst-case scenario, the standard GLC 63 Coupe will get 469 horsepower (349 kilowatts) and 479 pound-feet (648 Newton-meters) while the S will up the power ante to 503 bhp (375 kW) and 516 lb-ft (698 Nm). Not exactly worst-case scenario, is it?

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Both the GLC 63 and its coupe companion are going to be out in 2017 with standard 4Matic all-wheel drive and will go on sale by the year’s end. We’ll have to wait and see whether Mercedes will reveal both of them at the same time or it will decide to host the coupe’s premiere several months later.

The GLC family expansion isn’t going to end with these two as we already know a hydrogen GLC F-Cell is also scheduled to arrive next year.

Photos: CarPix

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