I am using WAGON R from last 4 years and its giving best result in mileage and performance. I got 20 km/lit.
I drive my WAGGY over 20000 km with no problem ever.
its TALLBOY look gives a mind boggling space which feels very airy and comfortable.
and finally its a MARUTI product so no problem in servicing and getting spare parts.
I also did 3 servicing which cost me avrage 2000 / ser, which is not far more as comparative to Hyundai and Honda.Its ground clearance is great which give you comfortable and risk free driving on off road .