I own tata indica vista quadrajet vx model since Feb 2012. I have done 124000km till now.
The cabin space, pick up, n mileage is excellent.
Scheduled maintenance cost as compared to maruti, its same. But as compared with Toyota its v expensive.
Spares n service centre network is everywhere.
Tata call centres responds very well.
But problems are a bit noisy cabin, n I'm totally not satisfied with service hands - they are almost not properly trained for the brand and also none is upgraded in service training even the car got almost all modern technologies. I strongly recommend the car with qjet if u find nearby service centre competent.
Reliability is less because of service centres.
A prompt n well trained service will assure its reliability.
Otherwise its very good car for mileage n maintenance, thanks to vista qjet team.