I kept Wagon R VXR for 4 years (2015-2019), driven over 100,000KM and then changed to Alto VXL, driven around 20,000KM so far. (Travelling reduced by 50% due to work from home arrangements
)
I felt seats of Alto are better in posture and slightly more comfortable. It's correct that back of rear seat is not high enough but due to better sitting position and extra ordinary leg room it felt more comfortable for up to 2 adult. By the way I'm 5'11" and my head didn't hit the roof.
Alto:
- better fuel average
- better seats
- more rear leg room
- more stable on motorway
- extra security features
- extra other features
Wagon R:
- slightly better AC
- more boot space
- better build quality
- quieter engine