These can be won by getting certain medals in dailies
Basically,there’s just a random brand stuck onto it(say,Muller Industries),which are sponsored at certain shops.
You get deals you normally wouldn’t get with those vouchers,like 3*20 Lives in the aftermarket.
This topic is open to suggestions,but remember,ideas aren’t implemented as-is.So don’t question every detail.It’s exhausting to think of everything.