Toyota are thought to be planning a return to Formula One in 2014 as an engine supplier.
The Japanese manufacturer, last seen in Formula One in 2009 as a full works team, are expected to badge their new V6 turbo engines as Lexus rather than Toyota.
Toyota's desire to use the Lexus badge in Formula One could stem from Infiniti's recent success as a sponsor to world champions Red Bull Racing. Infiniti, a premium brand for Nissan, is a market rival to Lexus.
According to a source at Club Lexus, the deal is 'all but finalised', however there has been no official confirmation. It is also thought that Giancarlo Minardi may be involved in some capacity.
Were they to return, Toyota/Lexus would join Ferrari, Renault and Mercedes-Benz as engine suppliers. Honda are also rumoured to be making a comeback with McLaren, with which they won four drivers and constructors championships in the late 80s and early 90s. Craig Pollock's PURE organisation was also set to join the fray when the new engine regulations come into play next season but development of their V6 Turbo engine ceased last year in light of budget problems for the Cologne based operation.