i think as of now, the gen coupe will offer you more power. on the auto-x the fr-s will be more superior from its light weight and smaller dimensions, but i think the gen coupe wont be far off if not faster on a track (mainly because of its power). In the states we have large highways and driving on them is easier with a bigger engine, whereas in europe and japan they have narrow curvy roads that require agility. even though the gen coupe is korean (similar to japan as far as road conditions), it is clearly made for the crowd here in the states, whereas the hachi is more of a niche car that follows its japanese traditions IMO. i myself ask for more power not because i want to race people on the streets and live my life quarter mile at a time but because it is a convenience to have the useable torque to pull myself out of trouble spots (merging, etc). genesis coupe will be easier to live with on a day to day basis because of those factors (especially if you are anywhere 6ft+), but most fans of the 86 wont care about that and demand more on cornering capabilities.
also, you should seriously ask yourself the question of, "would I really modify a car that comes with a 10-year waranty?" if you plan on modifying at all.
i think it's handling finesse vs grand tourer and they are both quite nice... now only if we can get honda and nissan going for more fun
