The first one smelly ho metal probably is active sport mode drive  rev the rpm to 4-5k
No 3 yes the acc is not smart
No 5 this one could be driveshaft rosak get it check at service center
No 2 try hear got sound or not if got high chance is steering rack problem get it check at service center claim warranty

Mine already 10000km steering rack n aircond blower in the middle rosak already claim warranty.Somemore the seat in the middle got spring sound😢.
Whether buying alza or veloz both is same they share same platform n parts.
My cousin veloz absorber n drive shaft already rosak steering rack claim 3 times already.gearbox also rosak

Some say is gearbox overheating some say is aircond compressor overheat when using sport mode not sure is which one.Fot me if I want extra power I use power mode I don t use sport mode Sport mode fr me is going downhill fr engine braking like Cameron hill or getting highland

For power mode so far mine don t have the smell

Floor rubber plug. To cover back hole under the car floor. They used to secure car while moving in trailer. Please take look under floor and install the rubber as now raining season.

wow wtheck, i have been driving for like 8months without the plug, will there be damage?

already done a basic 2 layer for all the doors ....

considering to do soundproof for roof or floor....

change speaker and add 2 layer of sound proof on my car door , what harm will do to the car?

the speaker wiring will gone hairwire ? my door will fell off ?

no warranty issue involve la.. use common sense