Wa alaikum assalam
Bro i have belta 2006 with a 1.3 engine
Belta is an economical car outstanding performance and fuel economy in the city as well as in the highway.
But when it comes to breaking ability, belta is a bit unreliable because it offers u 2 disc on the front and 2 drum on the rear.
When u suddenly hit the brake pedal it takes a while to stop the car
Whereas GLI is too much better in braking and otherwise.
I will suggest u that u should go for the GLI.
Moreover GLI has less expensive and easily available parts as compared to belta.