What was offered to Newey to head to Ferrari will never really be known.
Following weeks of speculation about the hugely-rated engineer, it was confirmed on the day of the Monaco Grand Prix that Briton Newey, 55, is staying at Red Bull.
However, while still advising the F1 team and mentoring its full-time staff, Newey will focus instead on a new Advanced Technologies Centre, reportedly to feature forays such as the new British bid for the America's Cup.
"Adrian has admitted openly that he is a little tired," Red Bull director Dr Helmut Marko this week told Austrian broadcaster Servus TV.
"This is because in Formula One there is gradually less and less room for innovation," he explained.
"We do not want to lose him, so we will build this new centre where - alongside his work in Formula One - he can also manage multiple projects," added Marko.
He said Newey, for instance, is still working on the design of the RB11, the 2015 Red Bull car.
For Red Bull, keeping Newey as a mere advisor is the best possible outcome, as it keeps the only designer revered in F1 circles as a 'genius' out of the clutches of its rivals.
Ferrari, for one, is known to have made an enormous monetary offer - in the dozens of millions - to woo Newey to Maranello.
Ferrari, however, denies it. "As I said in Monte Carlo," team boss Marco Mattiacci insisted last week, "we never contacted Adrian."
Marko says that is not true.
"We have had long conversations with Adrian," the Austrian told Servus TV.
"Ferrari made him an absurd offer -- both on the financial side as well as in terms of his responsibilities," Marko claimed.