Volvo has released final specifications of its range-topping XC90 T8 Twin Engine plug-in hybrid SUV, which is described by the automaker as “the world’s most powerful and cleanest SUV”.

Obviously, it’s not the most powerful SUV on sale, but it definitely is the cleanest, as it returns a combined 2.1 l/100 km (112 mpg US or 134.5 mpg UK), with corresponding CO2 emissions of 49 g/km (according to the NEDC driving cycle for hybrids.) Furthermore, pure electric range is 43 km (27 miles).

That’s not bad at all for a big 7-seat luxury SUV with a combined output of 407hp and a combined peak torque of 640Nm (472lb-ft) from a 320hp Drive-E four-cylinder turbocharged and supercharged engine and an 87hp electric motor. You may notice that the XC90 T8 Twin Engine is actually more fuel-efficient than initially announced, which is due to further tuning. The 0-100 km/h acceleration has also been improved to 5.6 seconds (previously 5.9 seconds).

The Volvo XC90 T8 Twin Engine offers five different driving modes: the default Hybrid mode, Pure Electric mode, Power mode for maximum performance, AWD mode for constant all-wheel drive and Save mode, which allows the driver to “freeze” the battery level and save it for later use.

The plug-in hybrid SUV will arrive later this spring in Volvo showrooms.

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