I drove it a while in US as I rented it from Hertz.
FC wise is pretty good, there'a an "Eco" indicator to help you to see if you are driving economically. On long distance driving, it could be even better than the Ford Fusion (if you cruise 70-80 miles, which is abt 140kph). You can choose to off the Eco mode, and the power starts kicking it, a lot.
Brake is short and sensitive. I would prefer the freeplay is a bit longer. Right now the freeplay is only like, 1cm.
The steering's light cuz of the eletronic power steering, so you might feel a bit "disjointed" when you try to turn the wheel during stationary.
Its a good and sleek sedan car, but its quite light and you can actually feel the car being pushed to the side if the sidewinds are too string (10km/h). Mind you this is with a load of 4 full adults, after a shopping spree.
FC is about 30 mpg (12.75km/l) in city driving, can hit about 40mpg (17.5 km/l) in highway. Note that the petrol grade here in US is only like R89/R91 here. R95 is considered to be premium grade here.
And the car I drove, I'm not sure why but it came with 2 cigratte receptacle port...
This is in comparison to the Proton Wira which I drove in Malaysia...
I've read somewhere that the fuel consumption meter reading of some of the car manufacturers (don't know whether is delibrately) are lower than reality.
The Hyundai Elantra really looks good. If the engine/ gearbox refinement/ fuel consumption can match japanese then I think it can sell well.