Hyundai is making some big changes to its Sonata sedan. The question at this point is whether we're talking about an extensive facelift, or an entirely new generation. These spy photos offer evidence for the latter, namely with a potential all-wheel drive setup.
A heavily camouflaged prototype was spotted recently undergoing winter testing, and our photographer got lucky with a couple of shots. A close look at the windshield shows paperwork with 2.5 GDI AT AWD clearly visible. 2.5 GDI and AT aren't out of place here, as the current sedan features a 2.5-liter four-cylinder engine with an automatic transmission (AT). AWD, however, points to this particular prototype having an all-paw powertrain. That's a feature not available on the current Sonata, and it's not exactly a simple thing to add.
