Bro the only aspect in which 75 hp scores slightly better than 90 hp is city driving. But recently Fiat has released an ecu update for 90 hp mjds which has made the lower end response better than before so now the difference in city driving has been bridged to an extent. So if you have budget for 90 hp you shouldn't think further. 90 hp advantages over 75 hp: 1) More powerful engine which makes the highway driving more exciting. And once you get used to driving it, even city driving is good. 2) Bigger wheels for better grip even though the alloys look bland in front of 75 hp. 3) All black interiors. Looks sporty and easier to maintain. 4) A much quieter cabin. 5) Smoked headlights. I was in a similar dilemma when I was finalizing my 90 hp 5 months back, but as the difference between the 75 hp and 90 hp was only 30k which made my choice easier.