Delay in race before countdown

[raxp]

I have a script, which let users to select their cars before the race. The problem is that I can't delay countdown. The race is starting so quickly and player just does not have time to select a car.

To delay countdown, I set the timer in a race resource, but I think, that this is a bad solution.

Is there another way to delay countdown without race_server.lua editing?

[Citizen]

No since they didn't provide functions/events to delay/start manually the race from another resource.