"Toyota Europe's wind tunnel and facilities have played a vital role in the development of McLaren single-seaters over the past 12 years," McLaren team principal Andrea Stella, as quoted by Motorsport.com.
"The cars we have developed in these facilities will have won 14 Grands Prix and achieved 29 other podiums between 2011 and 2013."
"We have established a good working relationship between the McLaren team and site personnel.
"Now that we are moving towards commissioning our own wind tunnel, which offers significant gains and aligns with the new structure being built within the team, we would like to acknowledge the work that has been done in the TGR-E wind tunnel which has been instrumental in the progress of the stable in the past."
"Our doors remain open to McLaren," said Rob Leupen, managing director of Toyota Gazoo Racing Europe.
“We wish them well with their new wind tunnel and, although this changes the services required from TGR-E and the frequency with which McLaren engineers are likely to come to Cologne, we have an open dialogue and are playing a constructive role in the process of integrating their new wind tunnel for the development program."
Toyota is the reigning world champions in the World Endurance Championship and helped Kalle Rovanpera to the World Rally Championship in 2022.
The Japanese company also has a manufacturer presence in the British Touring Car Championship and NASCAR but it does not intend to enter F1 any time soon.