I'm not sure about 1.6L Elantra, but these days I'm using 2L Elantra as a daily runner. Also within city and long drive both fuel average is excellent. Alhumdulliah car is serving well. Good fuel mileage, excellent acceration and handling. Only issue is back seat leg room for a tall person like 6' or more. I'm 6'2" and if I sit at back seat keeping my driver seat adjust for myself, my legs touches the front seats. Comfort way better than civic, but less than Corolla. Handling somewhere between civic x and Corolla. I would rate civic x drive and handling +1 But stability and drive is way better than Corolla. As a package and features Elantra was a good buy.
I have kept civic x, Corolla Gli 2015 and Altis 1.6 FL and city aspire CVT (only 2months but drive 5k plus) and sharing my 1st hand experience.
Elantra transmission (6 forward with triptronic) is very responsive and having 2L engine, it's faster than oriel and grande both. Having 4 drive modes, may be u have tested it on eco. Do test it in sports mode.
Fit and finish is much better than Honda and Toyota except for paint job. Paint is better than Honda but lower than Toyota. They need improvement on paint job.
BTW as per my discussion with dealership sales guy from 2 different showrooms and 2 different cities, Elantra 1.6L is not doing very well. Still most people are going for 2L. I think if u are considering 1.6L than Altis is a better option.