Yes, sexier 5-spoke wheels, like the Sky's or the concept Aura's, would do wonders to the overall appearance of the exterior. Those bland multi-spoke wheels largely detract from it as they have no connection to the design and can be seen on many other cars. Also, a piano black treatment to the center stack would greatly increase the interior appearance. As it stands, the lower portion, that's surrounded with wood and containing the radio and HVAC controls, doesn't flow well with the upper portion very well. The greyish plastic just exaggerates that. A piano black finish, like the Sky's, as well as metal-like trim, is much more upscale looking.
Personally, I would also like to see projector-beam headlights in place of the average halogen-bulbed ones as well as larger, more shapely lower grill openings like the concept's. A redesigned center stack, that flows more like the Sky's, without the wood seperating it into an upper and lower portion would also be something I'd prefer. I'd like to also see an available Navagation system to be completely competitive with it's rivals.
Either way, just doing what little this thread suggests would do so much towards the Aura's overall attractiveness. They're quite simply and easy changes to implement.