We've spotted the facelifted 2023 Mercedes-Benz GLC undergoing development testing several times this year, but the test mules were all heavily disguised in camouflage. Our spy photographers have once again taken photos of the GLC out testing, this time grabbing some never-before-seen pictures of the interior. Though the GLC isn't showing any more skin on the outside, this peek at the interior shows significant changes from the 2022 model.

Inside, the GLC will likely get the same 11.9-inch touchscreen MBUX infotainment system used in the recently-revealed C-Class Sedan. This setup first appeared in the S-Class and the SL; talk about technology trickling down rapidly.

Like those aforementioned models, the GLC ditches most of its physical buttons for touch controls. Should you not want to get fingerprints all over the screen, the MBUX infotainment system also features intelligent voice commands and touch-capacitive steering wheel controls. This major change to the cabin should help the GLC leapfrog the refreshed BMW X3 in interior technology. The area surrounding the screen is still covered, but we assume it will look broadly similar to what's in the C-Class, which shares a platform with the GLC.

Under the hood, we suspect the GLC will share engine options with the C-Class. The base C-Class powertrain uses a 2.0-liter inline-four turbo engine paired with an integrated starter generator that can produce 20 horsepower and 148 lb-ft of torque. In total, the drivetrain produces 255 horsepower and 295 lb-ft of torque, a small increase in torque from the current GLC. We expect Mercedes to offer a plug-in hybrid model as well, adding a larger electric motor and battery to generate 313 horsepower and 405 lb-ft of torque plus a 62-mile WLTP-rated electric-only range.

AMG models will follow, and like the C-Class, will all feature four-cylinder engines rather than the V6 and V8 motors found in the outgoing GLC43 and GLC63.