Mercedes-Benz has given us an advance look at the 2023 GLC via a fan of the brand on YouTube.

It’s set to be revealed later this year.

MercBenzKing was given early access to a GLC300d prototype, much as he was with the redesigned C-Class, and took it driving on the ice in Arjeplog, Sweden.

In the video, he notes the GLC is 60mm longer on a 15mm longer wheelbase, with much of the extra length at the rear. That would put it at 4729mm long on a 2888mm wheelbase.

There’s reportedly an extra 50L of boot space, bringing the figure to 600L.

There’s rear-axle steering available – much like the new C-Class, until chip shortages intervened – but it’s reportedly available exclusively with the optional Airmatic rear suspension.

The exterior was camouflaged but we can make out the cleaner flanks of the GLC, which have already been spied undisguised, as well as different-looking headlights and slimmer tail lights.

Much of the dashboard was concealed, however the GLC is expected to once again hew closely to the C-Class.

The C-Class’ interior is heavily inspired by the S-Class and offers a choice of 10.25-inch and 12.3-inch digital instrument clusters and 9.5-inch and 11.9-inch touchscreens for the infotainment system, which runs on the latest version of MBUX.

The Australian-market C-Class is only available with the larger of those screens.

We can also see a flat-bottomed AMG Line steering wheel, a digital instrument cluster, and a panoramic sunroof which appears to be slightly larger than that of the outgoing model.

Under the bonnet, we expect to see largely the same range of turbocharged, electrified four-cylinder engines as the C-Class.

The new C200 uses a 1.5-litre turbocharged four-cylinder with a 48V mild-hybrid system, with total system outputs of 150kW of power and 300Nm of torque.

The C300 features a larger 2.0-litre turbocharged four-cylinder engine that produces 190kW and 400Nm.

The C350e, available in other markets, uses a detuned 2.0-litre turbocharged four-cylinder engine, an electric motor, and a 25.4kWh battery pack. It has a total system output of 230kW and 550Nm.

There’s also a 48V mild-hybrid 2.0-litre turbo-diesel four-cylinder in varying states of tune, sold under the C200d, C220d and C300d badges.

All engines feature a nine-speed automatic transmission.

GLC43 and GLC63 AMG models are expected to follow, with the latter adopting a turbocharged plug-in hybrid four-cylinder powertrain.

The A45 AMG‘s M139 engine – re-engineered for longitudinal applications – can be combined with an electric motor developing up to 150kW/320Nm, though combined power and torque figures have yet to be released.

In 2021, Mercedes-Benz sold 3435 GLC wagon and 771 GLC coupe models in Australia, for a total of 4206 sales.

That put it slightly behind the BMW X3 (4242 sales). Throw in the 981 X4 sales and this widens the rift between BMW and Mercedes-Benz’s mid-size SUV line-ups. However, the GLC did outsell the Volvo XC60 (3688 sales), Audi Q5 (3604 sales), and Lexus NX (3091 sales).

MORE: Everything Mercedes-Benz GLC

William Stopford

William Stopford is an automotive journalist based in Brisbane, Australia. William is a Business/Journalism graduate from the Queensland University of Technology who loves to travel, briefly lived in the US, and has a particular interest in the American car industry.

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