- Mercedes-Benz is testing prototypes for a second-generation GLB-Class based on the MMA platform
- The new GLB-Class is expected to debut in 2026
- Both electric and hybrid powertrains are in the pipeline
A redesigned GLB-Class compact crossover is shaping up to be the second member of Mercedes-Benz’s next-generation compact family, following the redesigned CLA-Class, which debuted in March as a 2026 model for the U.S.
A prototype for the new GLB-Class has been spotted again, with production details like the lights and wheels. The prototype is for an electric model to replace the current EQB (Mercedes is moving away from the EQ naming practice), but a hybrid version is also planned. Both versions are expected to arrive on the market in 2026, likely reaching the U.S. as 2027 models.
A redesigned GLA-Class compact crossover is also in development, along with a new version of the CLA-Class Shooting Brake wagon. However, new generations of the A-Class sedan and hatchback, as well as the B-Class minivan, are not planned.
The GLB-Class prototype is heavily camouflaged, but the overall shape appears to be an evolution of the current generation, with a slightly rounder front end. The new headlights can be partially seen and feature a Mercedes star logo for the daytime running lights and turn signals. The rear section has more extensive camouflage, but it appears boomerang-style taillights are used, possibly joined by a light strip.
Part of the digital gauge cluster is visible in some of the images. As seen in the new CLA-Class, the new compact family features a dashboard with a wide panel integrating screens for the digital gauge cluster and infotainment system, along with circular vents for climate control.
The vehicle rides on Mercedes’ new MMA platform, which is designed primarily for EVs but also accommodates hybrid powertrains. For MMA-based EVs, which will use the with EQ Technology designation, Mercedes will offer a choice of single-motor rear-wheel-drive and dual-motor all-wheel-drive powertrains. Once again looking to the new CLA-Class, the rear-wheel-drive GLB-Class should be a GLB 250+ with EQ Technology powered by a 268-hp motor at the rear, while the all-wheel-drive model should be a GLB 350 4Matic with EQ Technology, adding a 107-hp front motor to the 268-hp rear motor. The front motor is designed to activate during high loads or when slip is detected. More powerful AMG-tuned variants likely coming with axial-flux electric motors and close to 500 hp are also planned.
An 800-volt electrical system will enable high-speed charging with a DC fast charger. The battery should be the same 85.5-kwh (usable) lithium-ion unit that features in the new CLA-Class, and should offer up close to 300 miles of range on the EPA test cycle.
For hybrids, which will be designated as with EQ Hybrid Technology, expect a newly developed 1.5-liter turbo-4 paired with a 27-hp electric motor sandwiched between the gas engine and an 8-speed dual-clutch automatic transmission. The total system output should be about 187 hp. The battery will be a 1.3-kwh lithium-ion unit mounted under the driver’s seat. Front-wheel drive will be standard, with all-wheel drive available as an option.
