Race cars does pretty fast laps there, an Aston Martin DBR9 race car did the lap in 1:08, so there are real life examples that go that fast, so did the Zonda R, with less power than the usual +900hp automation cars.
Also, @sam1554 we already had that, here —> Automation Airfield Power Lap Times but it hasn’t been updated by the OP in a long time.