Ferrari vented their frustration at rivals Williams and Red Bull on Tuesday after the teams said they were opposed to Michael Schumacher testing injured Brazilian Felipe Massa’s F60 car.
Seven-times world champion Schumacher, who retired in 2006, is set to fill in for Ferrari while Massa recovers.
F1 regulations do not allow track testing during the season, although Ferrari had hoped other teams would allow an exception after Massa fractured his skull in an accident at the Hungarian GP last month.
“Guess who opposed the test with the F60?” read a statement on Ferrari’s website.
“A team that hasn’t won anything for years and yet didn’t pass over the opportunity to demonstrate once more a lack of spirit of fair play.”
Williams last won the constructors championship in 1997, when Canada’s Jacques Villeneuve topped the driver’s standings for them too.