if you are planning on selling the corolla G and buying a belta 1300, you are moving down, the corolla is a size-class above the belta. however the belta is a VERY good car and it's better than anythign being offered in PK (local) as it has airbags (multiple), ABS, crumple zones (tested), side impact bars (that don't lock you in the car in an impact) etc.
as a second car to your corolla it's a great machine, and it's also an excellent alternative to the JDM corolla if you are getting tired of it. if you have a family (or for your own safety) i'd alwasy advise to get a JDM car as they are built with safety in mind.