Yar let me share my experience with Santro
3-Does 13Km/l with Ac and around 15km/l without in city
4-Stereo system is very good
5-Small things like lights turns off when engine is turned off, wipers start working automatically when u use wind shield (don't know what to call them) fountains
1-Very bad acceleration but very good speed.
2-The backdoors doors are defective. They take a lot of effort to close because the car has no airvents like toyota etc.
3-Back view is not good
4-Back space as mentioned earlier is small
But I think its better than cultus.