I own a santro xing xo since september 2006. It has almost covered 58000 KM now. I have driven long distances covering kolkata->delhi and delhi->to jaisalmer. Its an awesome car, no trouble, feel like it floats in air when at 145 KMPH. Smoothest in its segment. Offcourse I have had a regular maintenance of the car with on time servicing. Hard hitting roads or smoothest of the roads, there has been absolutely no trouble. Its zip drive is also amazing.
My recommendation -> go for a santro in its segment.
Dealer recommendation -> samara hyundai - lajpat nagar delhi - best dealer
Anupam Mazumdar.