Porsche and Toyota LMP1 teams rule out running Alonso in 2018

Since taking the decision to skip Formula 1's Monaco Grand Prix in favour of an assault on the Indianapolis 500 with McLaren's blessing, Alonso has spoken of his ambition to complete a motorsport 'Triple Crown' with victories at Indy and Le Mans.

Alonso had previously come close to a Le Mans seat with Porsche in 2015.

But asked by Autosport if any thought had been given to running Alonso in 2018, Porsche team principal Andreas Seidl said there would be no space for him.

"At the moment it's not on the table on our side because we only have two cars and I do not see that changing for next," explained Seidl.

"With the six drivers we have right now, we are very happy. We have no seats available.

"It would have been easier in 2015 with the third car.

"We had talks there, it didn't work out in the end.

"At the moment there are no options available on our side."

Asked if all six full-time Porsche drivers were under contract for next season, Seidl replied: "We always plan long-term."

Toyota team director Rob Leupen was similarly dismissive of the prospect of his team being able to accommodate Alonso in 2018, even as part of a three-car line-up.

"From my point of view, it has to be balanced within the team," Leupen told Autosport.

"It's not a priority to get a big name in. There is no focus on this at all.

"Of course you would listen [if he approached Toyota], but for us it's not something we would say we are interested in. Not at all."