Formula One teams prepared to work late into the night on Thursday to get their cars ready for the Sao Paulo Grand Prix after freight, including engines, was delayed in reaching Brazil from last weekend's race in Mexico City.
Haas team boss Guenther Steiner told reporters the overnight curfew had been waived and scrutineering times adjusted as a result of the problems, which he had heard were due to bad weather in Mexico.
"It's landed but I don't think everything is at the track yet," he said of the freight.
"Apparently the plane landed. That was what I was told maybe 45 minutes ago so it should be all at the track in the next hours.