It's at least a bit perplexing. You have the 180hp 1.6T and the 190hp 2.5. Which one is the more than adequate engine?
Oh wait, neither....that would be the rumoured 2.5T. In the N-Line.
Lol you are easily perplexed. The 2.5t N Line isn't rumored - it's confirmed - they even gave journalists the opportunity to drive a pre-production version. I mean, it helps your argument if the car is merely a web rumor, and the two sub-100 hp engines are all the engines there will ever be in the Sonata. But that would be pure fantasy.
Geez, you act like a car company releasing an entry level motor, then a more powerful one a bit later is something baffling and perplexing. It's actually quite common. In my Sonata the uplevel 2.0t followed the release of the base 2.5 by almost a year.
So to answer your question - both the n/a 2.5 and the 1.6t are "adequate", while the 2.5t is "ample" and in the same ballpark as the Accord 2.0T and Camry V6.
Not. Very. Baffling.
The upside engines are available in "normal" trims in the competition. Especially in Toyotas case, no need to go to TRD line (which is similar to N-Line idea). And yea...you could get the premium 2.0T within the "normal" old Sonata line.
No so with this new Hyundai. Gotta go with to be released sometime N-Line if you want more power. Disappointing...I think most real world drivers would prefer the 2.5T if they wanted more power without stepping up to N-Line...though maybe that would fix the somewhat disappointing suspension tuning of the "normal" models.
Should be available in normal trims for this family sedan segment IMO. Has worked well for the competition.
Also..when an average consumer is shopping, the "premium" 1.6T engine shows less HP than "base" engine. I'd say the average consumer might not dig deeper and look at torque graphs to decipher why the 1.6T is the "premium" engine.
So yes, might be perplexing for the average consumer and not fan boys like you.