Volvo XC90 T8 Twin Engine range, MPG, CO2 & charging

The Volvo XC90 T8 offers useable electric range and therefore strong efficiency. Charging is simple, too

MPG (comb) MPG (urb) MPG (ex-urb) CO2
100.9mpg - - 63g/km

A large, premium seven-seat SUV like the Volvo XC90 T8 is actually a great plug-in choice, as it gets around the disadvantages of a car like this when it comes to efficiency, combining petrol and electric power to serve up strong fuel economy and low CO2. Charging is easy – just remember you’ll have to do it every day to get the best from the car.

Volvo XC90 T8 range

With a full battery, the XC90 T8 will cover up to 28 miles on electric power alone – the same as with the smaller XC60 T8 – but supporting the petrol engine, it’ll achieve a best of 108.6mpg (go for a car on 21 or 22-inch alloy wheels and this drops to 100.9mpg, while CO2 emissions slide from 59 to 63g/km). Thanks to a 70-litre fuel tank, based on these figures cruising range is more than 1,000 miles.

However, this isn’t exactly realistic. You’ll only see this sort of range if your daily mileage is low. If you can plug in at home and at your place of work, this helps maximise efficiency. Our sister title Auto Express ran an XC90 T8 for six months and returned more realistic economy, but 38.2mpg is still a good result, especially given much of this was into and out of London. Based on this figure, a cruising range of nearly 600 miles on a tank of fuel is still good.

Charge time

As we’ve already mentioned, the XC90 T8 comes with a 4.5-metre long three-pin cable as standard, while a 4.5-metre Type 2 cable for a faster charger or wallbox is a £50 extra, which jars when you’re paying upwards of £60,000 – especially when it’s needed to make the most of the car's sophisticated powertrain and the efficiency potential.

Recharge times depend on the power supply you’re plugged into. A 6Amp charger will top the battery up in seven hours. This is cut to four hours for a 10Amp supply, while you’ll only need three when hooked up to a faster 16Amp feed.

This is the most efficient way to charge the 10.4kWh battery, but there's another way, too: there’s a driving mode that uses the petrol engine to charge the battery on the move. It’s useful if you want to top the battery up to use for all-electric driving when you get to a town, but it does place more strain on the engine, so expect your fuel economy to dip in this mode.

Battery warranty

Every T8 Twin Engine model in Volvo’s line-up gets an eight-year/100,000-mile warranty that covers the battery. This means if the battery starts to deteriorate beyond set levels, then you’ll get a new one, free of charge. However, we don’t expect this to happen.