No...the car you buy doesnt have to be suzuki certified....it just need to be maintained from a dealership....u can check its maint record there and undersntd if that specific car is worth buying
By dealership maint i mean, all of its work is done through dealership....ofcourse in some small fender bender accidents, scratches, dents, bumper hits people dont go for its repairs at dealership....but if the car was maint mechanically throughout frm there then it shud be good.
Both cultus and WagonR have its parts available throughout...wagonr parts may be expensive than cultus.....both cars have almost similar fuel avg, irrespective of its engine technology....any car can last long if well maintained.....
there are many people hence many reviews and comments about fuel avg etc...i drive soft foot and get 12/13 in my 11yr old cultus, so i would tell u it has great fuel avg....but if u have a heavy foot, and u buy my car, u will complain about fuel avg....so it all depends in owner to owner....I could be buying a cultus who's owner said its fuel avg is bad, but the car was well maintained, but later in my use the same car gives me better fuel than prev owner, so this means its upto me.
Make a decision:
You like box shape=start finding wagonr
You like cultus shape=start finding cultus
You want space for people inside= go and check WagonR sitting in dealership...sit in it, front and back and analyse....for cultus, find a friend, family, office colleague.
You want to know drive feel = find someone in ur social circle and test drive their car