New Volvo XC90 engine 002The new 2015 Volvo XC90 will be launched with a 400hp plug-in hybrid ‘Twin Engine’ T8 that emits 60g/km CO2 and will be capable of at least 100mpg.

The XC90 T8 will combine a 2.0-litre four-cylinder twin-charged engine driving the front wheels with an 80hp electric motor driving the rear wheels. Volvo says the combination of low-rev supercharger and electric motor torque, combined with the turbo’s higher-rev punch, gives a normally-aspirated feel and ‘unrivalled’ economy and CO2.

The XC90 is a seven-seater as standard, too: “With seven people in the new XC90, carbon dioxide emissions per person and kilometre are outstandingly low,” said Peter Mertens, Senior Vice President Research and Development of Volvo Car Group.

CO2 emissions can actually be zero for up to 25 miles, as the engine can run in pure electric mode. Conversely, combining the petrol engine and electric motor delivers 400hp and 472lb/ft of torque.

New Volvo XC90 engine 001

Volvo has also revealed details of other engines in the XC90 line-up. Don’t be confused by the names because all are four-cylinder units: the line-up includes a 225hp D5 diesel with 225hp and 47mpg combined, and a 190hp D4 diesel that will average around 56mpg.

The firm is naturally bullish. “With our new Drive-E powertrains, we have created a family of intelligent petrol and diesel engines with power curves that give exciting driveability at the same time as delivering world-beating fuel economy,” said Dr. Mertens.

It will be hoping the new engine range can keep up its track record in reducing car fleet emissions. Between 2012 and 2013, Volvo reduced its new car parc emissions by 8.4%, an industry-leading figure. The 100mpg-plus XC90 T8 won’t significantly add to that figure but the much greater volumes of 56mpg XC90 D4 certainly will – that’s 60% better than today’s XC90…