The new 2010 Hyundai Sonata is in the works and as you see here it’s doing  road tests. Apparently, new Sonata will be a coupe styled 4-door saloon like Mercedes CLS which seems like a tall order for a brand like Hyundai, nevertheless they have shown with Genesis that they got the guts to make ground-braking cars! Also next generation Sonata may spawn an estate variant. Hyundai has been developing a lot of new techs recently like the 8speed gearbox or new diesel engines which all will be featured in Sonata along with Hyundai’s first ever gasoline electric hybrid system. A debut is expected in Spring 2010. Check out the pictures after the jump…

source: Hyundai blog