Most second hand Sentra, I've seen seems to have better interiors vs Vios. Don't know if its quality are better or all the previous owners take very good care of them.
Yup Sentra 1.6 feels more spacious. Don't know about the FC cos my nephew don't bother tracking. Anyway it is already in its year 3. So far maintenance no major issue or problem.
If you buying new then I would pick Vios but if second hand, Sentra with low mileage would be a better choice.

This post has been edited by DarkNite: Sep 27 2009, 10:10 AM