While the looks of the new AMG GLC 63 SUV may not be a radical departure from the outgoing model, what’s under the hood couldn’t be any more different. Before there was a handcrafted AMG-fettled 4.0-liter V8 with specs of 503 hp and 516 lb-ft, and now there is a turbocharged 2.0-liter four-cylinder hybrid. It’s no downgrade, however, because outputs are dramatically improved to 671 hp, with 752 lb-ft of torque.
The engine in the 2025 Mercedes-AMG GLC 63 is a marvel from start to finish, making 469 hp and 402 on its own. It’s the most powerful series-production four-cylinder engine in the world, and it’s paired with a 201-hp permanently excited synchronous motor and a high-performance battery. The setup will see the GLC 62 hurtle from 0-60 mph in just 3.4 seconds, aided by the fully variable 4Matic+ all-wheel-drive system. Top speed is electronically limited to 171 mph.
The turbocharger setup used here is derived from the technology utilized by the AMG Petronas Formula 1 racing division. This includes an electric exhaust-gas turbocharger that has a slim electric motor integrated directly onto it to accelerate the compressor wheel before the exhaust gas flow takes over. The result is instant response, higher torque at low rpms, and better-maintained boost pressure.
The AWD setup provides ample grip, laid down by a nine-speed Speedshift multi-clutch transmission, and if slip is detected on the rear wheels, power can be transferred to the front for more traction. The nine-speeder has been tuned for short shift times and multiple rapid downshits, and Sport and Sport+ mode allows double-declutching. Of course, there’s a Race Start function for controlled launches.
We’re not sure SUVs need to be this quick, but AMG seems to think it’s necessary and the whole package is designed for immediate responses, quick torque build, and rapid power delivery. You can choose from one of eight Dynamic Select drive programs to tailor your experience.