Mercedes-AMG has just revealed the most powerful S-Class of all time in the form of the S63 E Performance plug-in hybrid (PHEV), but it won’t be coming Down Under.

A Mercedes-Benz Australia spokesperson said the S63 E Performance won’t be offered locally because the previous model wasn’t a big seller in the Australian market.

If you’re set on a PHEV AMG, the smaller electrified four-cylinder C63 S E Performance is coming to Australia around the middle of 2023 in sedan form.

The Mercedes-AMG S63 E Performance is powered by an updated version of the twin-turbo V8 PHEV powertrain that’s used in the GT63 S E Performance – which will go on sale in Australia from 2023.

It blends a 4.0-litre twin-turbo V8 engine producing 450kW/900Nm, with an electric motor on the rear axle producing 140kW/320Nm.

There’s also a larger 13.1kWh lithium-ion battery pack located above the rear axle which allows for a claimed pure electric range of 33km according to WLTP testing.

Mercedes-AMG says the high-voltage battery has been designed for fast power delivery and discharge, not for the longest possible range.

Total system outputs in the S63 E Performance are a staggering 590kW of power and 1430Nm of torque, which is 30kW less and 30Nm more than the GT63 S E Performance.

Mercedes-AMG claims the S63 E Performance can do the 0-100km/h sprint in 3.3 seconds and flat out you’ll be doing 290km/h with the optional AMG…