my experience with altis 1.8sr cruisetronic(not 1.6) and honda civic vti prosmetic
Honda Civic :
Extremely beautiful interior and exterior
Pleasureable drive
Good handling
Good brakes
Great AC
Milage not so good and really sucks in city
Suspension is alot stiffer than corolla
Steering Control is v rigid(non-electronic) as compared to corolla
Spare parts very very Costly
Corolla Altis 1.8
Consumption is good gives a very good milage above 16km/l on highways(the 1.6 version would be really better)
Suspension is alot good as compared to civic
Very Very Very Soft electronic steering control (this is the first thing u will notice as a big difference among both cars soon u sit on driver seat)
Good road grip and Drive has more options. Cruise Control, Triptronic Transmission (both auto and manual)
AC is nothing as compared to that of Civic
leather seats but civic seats are still better
As a car a good car but not very beautiful since there is alot of amount you pay for it
Spareparts are common and inexpensive but still not cheap