Mercedes-Benz is prepping the C-Class for a little facelift, and while it won’t be a radical overhaul, there are a few notable updates worth talking about. The 2026 model marks the first C-Class generation to go all-in on four-cylinder engines, and despite the occasional internet buzz about a V8 making a comeback in the C 63, Mercedes has pretty much shut that down.
Recently spotted during testing, the refreshed C-Class rocked its final production headlights and taillights, now sporting the same starry light pattern we first saw on the new E-Class and CLA Coupe. Up front, the grille has been tweaked too—it now shows off a subtle redesign that includes what looks like a backlit Mercedes badge, which is a slick touch.
Subtle Outside, Familiar Inside
The prototype didn’t bother hiding much else. The sides, rear bumper, and valance were fully visible, suggesting that most of the visual updates are limited to the lights and maybe that fancy grille. So, don’t expect big changes inside the cabin.
Spy shots haven’t caught a full glimpse of the interior yet, but there’s a decent chance the 2026 C-Class will feature new steering wheels with physical buttons, something Mercedes has been slowly reintroducing after feedback on their haptic controls. Also in the cards? A possible upgrade to the infotainment system, maybe even adding the MBUX Superscreen that debuted in the E-Class. That would be a nice bonus—especially if it finds its way into the GLC as well.
Plug-In Hybrids Take the Stage
One interesting detail? This particular prototype had two charging flaps, one on each rear fender. That’s a strong indicator of a plug-in hybrid setup, most likely aimed at the European market. Whether it’s the C 300 e, C 300 de, or C 400 e, remains a mystery—but we know the C 400 e comes standard with 4MATIC AWD, and all three models are listed with 127 hp from the electric motor.
Out of those, the C 300 de diesel plug-in hybrid has the best electric range, with Mercedes-Benz Germany quoting up to 73 miles (117 km) on a full charge thanks to its 25.4-kWh battery. That’s pretty solid for a PHEV.
Over in the U.S., though, plug-in C-Class options are… let’s just say “limited.” The only PHEV you’ll find is the high-octane, high-priced C 63 S E PERFORMANCE. It’s definitely not built for fuel savings—the electric-only range is weak, but with 671 hp and 752 lb-ft of torque, it’s more about flexing muscle than stretching miles.
What About That Inline-Six Rumor?
There’s been some talk—nothing official yet—about a possible inline-six version of the C 63 in the future. Some suggest it might be a mild-hybrid, while others hope for a full plug-in hybrid setup with a rear-mounted electric motor. But Mercedes hasn’t confirmed anything, and even if they go that route, keep in mind their existing gas-fed I6 isn’t a true AMG engine like the hand-built M139 four-cylinder currently powering the C 63 S.
That four-banger, by the way, is no slouch. It’s got F1-inspired tech, with an electric motor integrated directly into the turbocharger shaft. It’s a tiny engineering marvel—just not enough to win over a lot of AMG purists, apparently. Sluggish sales of the current C 63 and GLC 63 S E PERFORMANCE models might be what pushes AMG to consider adding more cylinders.