CO2 output levels drop on Volvo's new C30 Efficiency model, while a new gearbox improves economy across the range.
The specification for Volvo's new C30 initially sounds like revisions for a more sporting model. However, the C30's lower ride height, roof-mounted spoiler, new rear bumper, underbody panels, optimised engine cooling and revised gearing is not for the sort of performance gains you might expect. The changes improve efficiency instead, and allow Volvo's 105bhp 1.6-litre turbo-diesel C30 to return an official combined consumption figure of 62.8mpg and CO2 emissions below 120g/km. That compares to the 57.6mpg and 129g/km of the standard car.
To do this the alterations allow the car to slip through the air more efficiently, while low rolling resistance tyres and higher gearing help to allow the C30 Efficiency to neatly fall into the exemption category for the proposed changes to London's Congestion Charge. The C30 isn't the only Volvo to benefit from consumption reduction though. A new 2.0-litre turbo-diesel engine and transmission combination will be offered on the 2008 model year C30, S40 and V50 ranges that will improve economy. They'll be achieved as a result of the transmission's twin-clutch layout, it meaning there's no interruption in the torque delivery during gear changes. This reduces consumption when compared to a standard automatic gearbox.
Magnus Jonsson, Senior Vice President Research and Development at Volvo states: "We are firmly committed to lowering the fuel consumption of our conventional petrol and diesel engines. By doing this we will continuously reduce the overall CO2 emission level for our whole model range."