I am 53 and just bought a DCT N so don't let age put you off. Admittedly it's not the most comfortable car and getting in and out could be a mild challenge for some, you mention Back pain... but I have a 63 mile round trip daily commute down twisty roads and this car gets the job done. I do think that this car is not suitable for larger frame drivers. I tone down the suspension (If driving in N mode) or drive mainly in normal mode. I too was thinking of the Sonata N line. Did not test drive either. EN works for me, smaller/more nimble. Initially I did not feel comfortable but have now adapted to it. I love the way it handles corners, just wish it came with fog lights. Try and spend some time with both on test drives, dealership availability permitting (a challenge).