QUOTE(yok70 @ Apr 16 2019, 03:52 AM)
3. The CVT
(a) How is it compare to Persona or other cars? Many complaints for lack of power, do you agree or disagree?
(b) What's your overall comments for the CVT performance?
4. The button to on/off the slippery protection feature.
(a) I'm sorry, I know this is not unique on Vios. May I know what's not good if on it? Because for safety purpose, on it should be the way to go, why is there a need to off it? Please teach me about it.
So far that's it.
Thank you and hope to hear from you soon.

I can comment on above questions only.
3. The CVT
CVT, meant for fuel saving not for performance. The system make use of variable pulley ratio. There is no real gear in CVT. In CVT, the only time you can feel the fix ratio is when you switch to manual shifting and when you press hard on accelerator.
4. Traction Control (Slippery control to your understanding)
ABS/TRC/VSC - features that manipulate braking system.
ABS - Anti-lock braking system
Activated when braking on slippery road
TRC - Traction Control
Activated when accelerating on slippery road
VSC - Vehicle Stability Control
Activated when do cornering to prevent skid.
Just leave them on. Turning them off does not improve performance but only lead to disaster.