The Japanese manufacturer’s four-wheel-drive GR010 HYBRID ran with 14-inch tyres front and rear in its title-winning debut season in 2021, but will switch to a second option currently allowed within the rules for this year.
That means it will run 13.5in front and 15in rear Michelins, the same as the rear-drive Glickenhaus-Pipo 007 LMH.
The move has yet to be confirmed by Toyota, but sources confirm that pre-season testing has taken place with the car in the revised configuration.
A Toyota spokesman would not confirm the switch and said that it would be revealing the technical specification of the latest GR010 ahead of the official WEC prologue test the weekend ahead of the Sebring 1000 Miles season-opener on 18 May.
Toyota’s switch between the two tyre-size options in the regulations has been influenced by rule changes following the completion of the process of convergence between the LMH category and sister LMDh class, which comes on stream next year.
The so-called ‘120 rule’,…
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