I like the looks of the new Passat much better than the overstyled Sonata with all the curved lines and creases (to me it looks dated already), although it's not as as handsome as the Optima. The interior looks very upscale and uncluttered as with most VW's.
I don't understand all the negative comments about the 2.5 engine. I have it in my '10 Golf with the 6 spd. auto. It is so quiet and smooth I can't tell that it's running at idle. It has plenty of tourque. The manual shifter works very well for good performance and it also has an automatic sport mode for even better performance. Under hard accelleration it has a nice growl to it rather than the buzz of most 4 cylinders. I can achieve 7.0 litres per 100 kms, the same as my '07 2.4 L Camry, at around 120 kph on a long trip and it's rated at 6.9, compared to 6.1 with the Camry. And to top it all off I haven't had any warranty claims compared to several with the Camry, and only one maintenance service, in the first 19 months.
Test drive a 2.5 Passat, who knows, you might like it.