Sir, you're mistaken. You've just driven them and i have them at home and have tested all three vehicles together. Ciaz really shines after 100 kms and its difficult for Altis and city to match that. The only edge Altis has is of its 2nd gear which goes on till 130kms almost , other cars with 5 gears normally shift to 3rd at around 95kms and their peak torque drops whereas Altis at that time is almost peaking it's torque figures. As soon as the other car pics up in it's 3rd gear Altis is gone for good.
Btw, i am talking about automatic transmission only. Ciaz 1.4 AT( 92bhp) vs Altis 1.6 At (122bhp) vs City 1.5 At(118bhp) .