Camouflaged prototypes of the next Mercedes‑Benz GLB electric compact SUV were filmed during winter testing near the Arctic Circle, a new spy video published on Nov 11, 2026 shows. The footage captures at least two GLB‑shaped test mules running cold‑weather cycles and carrying heavy winter instrumentation rather than full hide‑away camo, suggesting engineers are focusing on climate and durability validation at this stage.
What was seen on the spy footage
The published video — posted by a Pro‑Street spy‑photographer on Nov 11, 2026 — shows a compact, boxy Mercedes‑bodied prototype with production‑style doors and a masked front end driving on snowy, salted roads. The tester’s commentary and on‑screen shots note winter test rigs on the vehicles (extra sensors, heavy tyre/traction setups and protective tape on the front) rather than pure development mules with full body wraps. That combination is commonly used once a model has entered late development and is being validated for markets that include sub‑zero climates.
Motor outlets that track development mules list the GLB among Mercedes’ compact models scheduled for electrified and fully electric variants; the winter videos align with other recent spy coverage of Mercedes’ compact EV programme.
Production context: Kecskemét, Hungary
The GLB is already a core compact model in Mercedes’ European line‑up and the company’s Kecskemét plant in Hungary lists the GLB among its production items. Mercedes‑Benz Group’s site for the Kecskemét facility states the plant produces the Mercedes‑Benz GLB alongside the A‑Class and the electric C‑Class, and that the site covers the full spectrum of drivetrain technologies from combustion engines to fully electric vehicles. That means late‑stage testing of an EV GLB has direct relevance to an active European production location.
Industry production databases and plant trackers also record Kecskemét as an important compact‑car assembly hub for Mercedes in Europe, and have catalogued the plant’s ongoing electrification programmes.
What this means for the market
For Central and Eastern Europe the sighting matters because Mercedes already runs large assembly capacity in Hungary. A late‑stage GLB EV programme — now visible on cold‑weather test runs — increases the probability that a significant share of European GLB volume (including electrified variants) will be assembled within the region. That influences supplier demand for EV components, local logistics flows and workforce planning in Hungary and neighbouring CEE supply clusters. The Kecskemét plant’s public profile as a site that handles electric models means any shift to higher EV volumes there would be felt across regional battery, wiring‑harness and body‑shop suppliers.
From a product perspective, the spy footage does not reveal powertrain or battery specifications; it does, however, mark the GLB’s electric variant as well into the validation phase — the stage when OEMs refine thermal management, software maps and durability before confirmation of final homologation and production ramps. Observers tracking Mercedes’ compact EV rollout will watch for factory announcements about model timing and trim mix at Kecskemét.
Mercedes GLB listings on WorldTrader24 →
Sources: Pro‑Street.dk, Mercedes‑Benz Group, Motor1, MarkLines
