Bro Belta is quite spacious from inside, I do agree that Corolla in dimensions is a bigger car.
My comparison is between Corolla 1.3 auto vs 1.0 Belta.
Other Corolla Variants are far superior and would be a definite choice. And if you don't have a problem with Manual, 1.3 Manual Corolla is sufficient too.
City is slow in automatic, but manual City gives more driving pleasure than Corolla.
The only reason to write this article is that in terms of driving 1.3 auto Corolla and 1.0 Belta are quite similar. Both are slow but good family cars but with a big price difference.
In same budget Civic Rebirth is a completely different beast, feels like a proper upgrade from Belta or even Reborn is an excellent drive. But in 2.0 million Corolla 1.3 auto doesn't feel like an upgrade from Belta.
Corolla do enjoy better resale and market value but if keeping money safe is the only object why not invest in Bonds.