'Making the right strategic choices'
- What makes a Safety Car challenging for the team?
"The biggest challenge a Safety Car (SC) brings to the team is making the right strategy choices. Under the Safety Car the tyres will very quickly become cold. If they are new tyres, that's not much of a problem as they will be back in their operating window fairly quickly after the restart, usually after two or three laps.
"Tyres that are in the middle or the end of their stint are much more difficult in that respect as they will restart slower - or not at all. Without a Safety Car, at regular speeds and temperatures, those tyres would still generate good grip.
"However, once the energy is taken out, there is not enough rubber left on the tyre to restart it. Newer tyres provide more grip because there's more rubber on the tyre and are thus able to generate more energy which will then heat up the tyre quicker.
"Anticipating how the tyres will behave after the end of the Safety Car is challenging as it is very tricky to simulate tyre wear and know how much tyre wear there is during the race.
"So, the decision on whether or not the team thinks the tyre will restart is based mostly on the strategic experience of the team in addition to information about the tyres from the drivers before the Safety Car."