The upcoming Mercedes-Benz GLC Coupe has been spotted briefly testing in the hotter V6-powered version.

The upcoming Mercedes-Benz GLC Coupe has been spotted briefly testing in the hotter V6-powered version.

Mercedes is getting ready to make the GLC a bit more impractical by turning it into a “coupe” for those looking for an alternative to the BMW X4. The sloped roofline will have a negative impact on the rear headroom and the trunk’s capacity, as seen in the differences between the GLE and GLE Coupe. What we have here is the warm GLC 450 Coupe version set to be positioned right underneath the fully-fledged Mercedes-AMG GLC 63 Coupe.

Aside from the quad exhaust tips, the "450" model will have a slightly more aggressive body, bigger brakes, bespoke wheels, stiffer suspension, and a larger engine. It’s a biturbo 3.0-liter V6 with 362 horespower at 5,500 rpm and 384 pound-feet of torque from 2,000 rpm delivered to a 4MATIC all-wheel drive system through a seven-speed automatic gearbox. In the C450 Sedan, this hardware arrangement is enough for a 0-60 mile per hour run in 4.8 seconds, but the GLC 450 Coupe will be a tad slower given the slightly increased weight. As a consequence, expect the sprint to take approximately 5 seconds.

Mercedes-Benz will likely bring the GLC Coupe to the Geneva Motor Show in March and chances are this spicy version is going to be displayed as well. As for the range-topping model, it will likely arrive early 2017 and will be equipped with a larger biturbo 4.0-liter V8 engine putting out 469 hp in standard guise and 503 hp in the S model.

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Mercedes GLC 450 AMG Coupe spied from behind [video]