Boss Christian Horner said Red Bull will now assess the next move, after earlier problems arose with correlation between CFD, the wind tunnel and the track.
"We are looking at which of our tools we can rely on and which we cannot," he told Auto Motor und Sport. "The wider tyres have a greater impact on aero than we thought."
Red Bull does now at least have the full attention of Adrian Newey, after the famous F1 designer spent much of his time in the last two years on non-F1 projects.
Indeed, Newey was even in Barcelona.
"Adrian wanted the feedback from the drivers to better understand the car and determine the direction for the future," said Horner.
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