|Volvo DRIVe S80 and V70 with 119 g/km. Click to enlarge.
Volvo has introduced new DRIVe diesel versions of the S80 sedan and V70 wagon with CO2 emissions of 119 g/km, corresponding to fuel consumption of 4.5 L/100km (52 mpg US). With the arrival of these two, Volvo now has five models available with emissions below 120 g/km.
Volvo uses the DRIVe badge on its cars with the best environmental performance in their respective size class. In addition to the Volvo V70 and S80, the other DRIVe models with emissions below 120 g/km consist of the Volvo C30 (99 g/km), Volvo S40 (104 g/km) and Volvo V50 (104 g/km).
|“There has been a swift pace of development since the launch of our first 119-gram models in Paris in autumn 2008.”
Volvo Cars President and CEO
As with the earlier DRIVe versions (earlier post), the new 119-gram versions of the Volvo V70 and S80 are equipped with a 1.6-liter diesel engine and manual gearbox. They have a power output of 109 hp (81 kW) and maximum torque is 240 N·m (177 lb-ft). Volvo engineers employed two main techniques to reduce CO2 emissions from the previous 129 g/km (4.9 l/100 km) to 119 g/km (4.5 l/100 km):
Intelligent battery recharging, whereby the control system only allows the alternator to charge the battery when the engine is operating at low load, for instance when driving downhill.
Reduced friction for the belt that drives the alternator and air conditioning compressor. The redesign of the tensioner pulley and alternator pulley results in lower fuel consumption and lower emissions.
Smart battery recharging is the most important measure. It is primarily thanks to this that we have dipped below the 120-gram level that gives car owners tax breaks and other benefits in a number of European countries. What is more, one might say that we offer the normal driver one free tank of fuel a year.
—Ulf Nordström, Technical Project manager at Volvo Cars
The reduction in fuel consumption from 4.9 L/100 km (mixed driving cycle) to 4.5 L/100 km means that someone driving 15,000 km a year will save 60 liters of diesel. Translated into carbon dioxide emissions, the saving is 150 kg over a year.