santro is a fine car.. i av it.. its betta dn alto.. more comfy.
i would rank
1. cultus (spacious, comfortable, parts r cheap bt a betta cultus will b around 650K +)
2. Santro (front seats r spacious, bigger boot, power windows, steering. less rear leg room)
3. core ( quality, spacious, comfy, but i think its expensive for its size. core is a nice car.)
4. Alto. (parts are cheap but no road grip, no quality)