In 2020, prior to Racing Point's transformation into Aston Martin, the team used the Mercedes wind tunnel, leading to a car design bearing a striking resemblance to the 2019 Mercedes championship-winning car.
Following a Renault protest, Racing Point were found in violation of IP rules, resulting in a €400,000 fine and the loss of 15 constructors' championship points.
Horner: No 'Pink Mercedes' repeat at Red Bull
However, Horner has firmly stated that there will be no recurrence of this infamous controversy, even as the teams strengthen their collaboration.
"We're an awfully long way from a 'Pink Mercedes'," Horner said. "There are some transferable components that are clearly listed within the regulations that you're allowed to supply and that's what they get.
"When you look at the car, there are quite fundamental differences between that car and a Red Bull Racing car. And arguably, there are other cars on the grid which are far closer in concept than an AlphaTauri is.
"You've only got to look at an Aston Martin or even a McLaren. If you look around the rear suspension of a McLaren, it's very close in concept to that of our own."
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