Our high performance powertrain, the T8 Twin Engine, gives you an involving drive as well as lower fuel costs and CO₂ emissions. In our T8 Twin Engine plug-in hybrid, a high-performance supercharged/turbocharged four-cylinder petrol engine combine with a powerful electric motor to give you the power and performance of a much larger engine while using much less fuel. The 320 hp/400 Nm petrol engine drives the front wheels and the 87 hp/240 Nm electric motor powers the rear wheels, giving instant acceleration and on-demand all-wheel drive. And you don't have to worry about the range – in pure, zero emission electric mode the driving range is up to 40 km, ideally suited to daily commuting. And when that isn't enough, the petrol engine can be called upon anytime. With the T8 Twin Engine you can choose between several drive modes to suit your preferences and the driving conditions. In Hybrid mode both the electric motor and the petrol engine are utilised, individually or parallel, to optimise performance, fuel consumption and comfort. Pure/Eco mode prioritises electric operation and low energy consumption, helping you to maximise driving on hybrid battery power for example in the city. Power mode, on the other hand, means that the electric motor and petrol engine works in parallel to maximise performance, sporty characteristics and quick response. This also means that both the front and rear wheels are driven. AWD mode activates all-wheel drive to improve traction, primarily at low speeds and in slippery conditions. And when driving on really poor roads at speeds below 40 km/h, you can activate the Off road mode that will facilitate driving in difficult situations. There's also a Save for later mode that allows you to optimally charge the battery while driving so that the battery's energy level always will provide about 20 km of pure electric driving. You can also tailor your very own individual driving mode. Using the alloy roller control in the centre console between the front seats, you easily switch between the different modes. And if you’ve chosen our active chassis with air suspension, your car automatically selects the best chassis settings to complement the drive mode, allowing you to get on with enjoying the drive while your Volvo does the work. So your XC90 can be a silent-running zero-emission city car, a potent open-road cruiser or a reassuring companion in slippery conditions – all while keeping the environmental impact at a minimum. And the fuel-saving eight-speed Geartronic™ automatic transmission ensures you'll always be in the right gear to enjoy superior comfort and engine response.