[Noah930]

How does a Virtual Safety Car (VSC) work? I understand the concept: there's some sort of incident on the track, it's worse than just a local yellow so the stewards want all the drivers to drive at slower than race pace (about 70% of normal race pace) around the entire track, but it's not so dangerous that the Bernd and the Safety Car actually have to be deployed to bunch up the pack. So some sort of light goes on on the dashes of the race car (and lit signs around the track), and all cars are expected to drive at about 70% of normal race pace. If they go too fast, then they'll be penalized.

But how do the drivers know what a 70% lap time is? Even as good drivers as they are, there's no way for them to think "OK, I'll just drive at 7/10s now" and be accurate. How do they actually know that they're driving to make those sector times at 70% speed/time, and not 60% or 75%? Too slow and you'll lose out to your competitors. Too fast and you'll be penalized. It can't be something as simple as the pitlane speed limiter, is it?