Althrough it is sorted under Class-S Cards in the inventory, it is needed for upgrades of all vehicles, mostly at certain upgrade levels divisible by 5, starting at level 15.
It is also obtainable as a reward for reaching the top 2,000 in the following Limited-Time Events, repeating every 7 weeks.
Status icon explanation:
: Not running – : Running – : Starting today
|Bailey Blade XT4 Test Drive||Jan 31, 2022|
(in 13 days)
|GMC Vandura Test Drive||Feb 7, 2022|
(in 20 days)
|Porsche Macan Test Drive||Feb 28, 2022|
(in 41 days)