u can check prev page, ive done soundproofing to my prev viva using stp soundproof....door closing n open even more solid compare to my suprima....

but b4 proceed with soundproofing, u should unless understand fundamental of soundproofing. Different material give different result, but since viva is really like a milo can as u said, u will need every material if u want conti-like driving experience. So for viva, u should start with 'vibration damper' 1st....

last time i bought stp gold 550/box....got 10sheets inside. But stp gold very expensive now, use silver or i silver would be ok....Crucial parts for viva at all 4 doors, spare tyre area, and front floor area.... start using one material each time, so u will know the effect of each material...
refer page 26, my post was there....

I use 1sheet per door, 100% coverage...But from StP videos on youtube, they said 70% of coverage enough d. StP gold/bomb/silver/i-silver was dampener, use to make thin metal sheet thicker and more solid, thicker metal sheet mean to reduce vibration, so it reduced low freq resonance from outside...
If install at door, u get solid door opening n closing, clearer sound from speaker, but still can hear lorry/motorcylcle (dis u need sound insulation/absorption material and 'D' or 'P' type rubber seal). If install at floor, it reduced so much noise from the tyre....

Vibration Damper
STP BOMB AERO
STP GOLD AERO
STP ANTICOR G
STP ANTIRUST G
STP ANTICOR S
STP ANTIRUST S
STP ANTICOR LIGHT
STP ISILVER ANTIRUST
STP FLEX
STP VIZOMAT

STP SPL Sound Insulator, Heat Insulator
STP VBT Sound Absorber, Sound Insulator, Heat Insulator
STP BIPLAST Sound Absorber, Sound Insulator, Heat Insulator

Is he using StP? How many layer he put?

Gold/silver  have same size....go to page 26, i already search 4 u.....look at pic i post, only use 1sheet per door, already got
100% coverage.....

The meter have  odometer and 2 trips. Odometer will not reset if you reset the trip.