i will share some of my epxeriences
Cultus pick improves after 10k km
U need to drive it a bit harsh then it works ok keep it above 3000 rpm then u will get some pick at all times -i.e chnage gear when u touch 4000rpm
but forget bout consumption u will get 10-12km from it
older pre 2001 models had better picks
a/c of all cultus have different blows - some dont throw air on the driver side, some just have sound but very little air , some even worked fine
orignal cng has poor pick as compared to petrol version
but factory fitted cng is best in performance
we had five six cultus in office each one behaved differently - timing must be set asper specifications at 6 degrees for cultus to have decent pick
all depends on ur luck which piece do u get - recently drove a new VXL , it was ok in pick but ac blow was issue