28 mpg is not bad for a 4 cyl family sedan. the 4 cyl camry or accords are 21mpg in city driving (new epa numbers). That means the aura is a 33% increase in fuel economy over its popular rivals.
price 22,600-1300 tax credit=$21,300 not expensive for a nice family car.

it is not going to change the world, but it is definitely a good step forward.
if every vehicle class improved 25-33% it would go a long way to solving our energy problems.