2014 Volvo S60
As for the stronger engine, that's where Volvo is expecting nearly a 30-percent improvement versus the S60 T6's existing 18 mpg city, 25 highway ratings.
Both of these engines include stop-start and were conceived from the start to include it, so they should have an advantage over some other vehicles in this class in congested stop-and-go driving. New eight-speed automatic transmissions are also applied.
Weight savings should compound fuel savings
While a number of other automakers move to direct gear-driven accessories and chain-driven timing belts, the new Volvo engines, which will be made in Sweden, rely on belts for both (engineers cited reliability improvements and weight savings).
Altogether, the stronger Drive-E four saves about 95 pounds versus the outgoing six, while providing acceleration that's even quicker.
In Southern France this past week we drove a Volvo S60 T6 equipped with prototype versions of the stronger powertrain, and found them to be smooth and perhaps even stronger than the six in some situations. The S60 already gets some significant revisions for 2014, and with better gas mileage for 2015 this model should be a stronger rival against the Mercedes CLA and Audi A4.
Are you more likely to consider a sport sedan like the Volvo S60 if it has a turbocharged (and perhaps supercharged) four-cylinder engine?
Leave us your thoughts in the Comments below.