just sharing my experience of Cultus tyre change.
i have a Cultus 2015.
50,500 km driven. was driving it on stock General tyres.
changed its tyres to Bridgestone 175/70/R13.
the ride has TOTALLY changed in terms of handling, ride comfort, drive & braking.
the engine noise has also changed. don't know why.
even the passengers can feel the difference while in car.
totally impressed 