This week, our spy snapper has sent us the most revealing photos yet of the Mercedes-AMG GLC 63 being tested. Compared to the spy shots that we saw earlier this year, these new photos show the prototype in a more production-ready garb, complete with a roof-mounted spoiler, AMG exhausts and a new front fascia with large air intakes and a grille that looks like the AMG GT3’s.

Powering the first full-on AMG vehicle in this segment will be the familiar 4.0-litre twin-turbo V8 that is expected to produce 503bhp and 700Nm of torque in the GLC 63 S version, while a less powerful trim will also likely be added to the line-up. Regardless of the engine’s tune, the GLC 63 is expected to come equipped with all-wheel drive as standard, with either a seven-speed automatic or the nine-speed auto from the E 63 sending power to the four corners.

Since the milder GLC 43 does the 0-100kph run in 4.9 seconds, the GLC 63 should cover that distance in about 4.0 seconds.