However, the former Williams driver left the door open by suggesting that the decision was valid "for now".
The Woking team announced on Friday that the 2022 Le Mans winner Hirakawa will be a reserve driver in 2024, with a simulator role and testing.
On Saturday there was a stir in the paddock when Toyota Motor Corporation chairman Akio Toyoda, also known as Morizo for his own racing activities, appeared in the McLaren hospitality area. He spoke to local media and was interviewed alongside Hirakawa.
His presence inevitably sparked suggestions that McLaren has an interest in enticing Toyota back to F1 at some point after the new power unit rules come into play in 2026 and that the Hirakawa deal is a starting point.
Toyota enjoyed a close relationship with McLaren for many years regarding the use of its Cologne wind tunnel, with the deal ending this summer when the team's own facility came on stream.
The team’s previous boss Martin Whitmarsh spoke to Toyota in the build-up to the arrival of the new hybrid regulations in 2014, prior to doing a deal with Honda.
However Nakajima, who serves as the company’s motorsport senior executive advisor, insisted that Toyota currently has no plan to return to F1 for the first time since withdrawing its works team at the end of 2008.
Source: Autosport