For a indirect comparison:
I have a 1.6L Elantra and 1.6 408T sit in my car porch and the noticeable difference is :

Elantra
Pros
Really Light steering wheel and easy to drive around town
Nice sound system (heard that 1.8 HU is not ori and suck big time)
spacious cabin
Very sporty and sexy looking car
Fast cooling air con

Cons
Handling suck big time.. woobling left and right when hit on uneven road.. Even Mazda 3 is better than Elantra
Engine sound suck big time when pedal to metal.. the engine like screaming for help above 4K RPM.. 
Although on paper the power figure is highest in it's class.. but I can really feel it..felt under power on stand still and pickup
I have try to be gentle on the pedal.. max I get is 20cent/KM town driving
408T
Pros
Nice engine note when accelerate
Needless to say.. Powerfull!!
Handling are top notch
more spacious than Elantra
Steering feedback is precise and confident when maneuver at corner.. but prolong drive I feel kinda a fatigue with the constant uneven road feel transfer to the steering

Cons:
Air con not than cool in the afternoon.. even you turn to "LO" 
Sound system suck big time
Higher fuel consumption
Very very addictive..every time I drive alone without CFO beside me.. I tend to pedal to metal.. just to hear the faint sound of "pssshhtt" 
Boring back side look
really really loud engine fan noise
Dusty brake pad and with this kind of multi spoke rim.. wash me die!
Overall.. Elantra is like Korea Kpop singer.. heavily disguise in cosmetic sugery.. just for the look.. while 408T is like truffles.. looks is not that appealing but wait till you taste it