- 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 arrives later this year as a 2026 model.
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.
2027 Mercedes-Benz GLB-Class EV spy shots – Photo via Baldauf
Part of the digital gauge cluster is visible in some of the images. The new compact family is expected to feature 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, Mercedes will offer a choice of single-motor rear-wheel-drive and dual-motor all-wheel-drive powertrains. The rear motor will have a 268-hp rating, while the front motor, which is designed to activate during high loads or when slip is detected, will have a 107-hp rating. More powerful AMG-tuned variants are also planned.
2027 Mercedes-Benz GLB-Class EV spy shots – Photo via Baldauf
An 800-volt electrical system will enable high-speed charging with a DC fast-charger. While Mercedes hasn’t confirmed battery sizes, at least one battery option is expected to have a usable capacity of around 85 kwh.
For hybrids, there will be 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 will be 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.
