Alonso to get power unit priority - Button

Jenson Button says Fernando Alonso will retain priority with a new Honda power unit this season.

Alonso tested an updated Honda power unit during Friday practice for the Russian Grand Prix, reverting to an older specification in FP2 for the rest of the race weekend. Button says Alonso will race first with the updated engine but says he understands the need for Honda to get mileage as soon as possible rather than waiting for both drivers to receive it.

“It’s not actually for this weekend as such, the updated engine," Button said. "It’s for another race, but yes he will have it for that race and I won’t. But we need to get it on one of the cars and see what it gives us and mine will follow at the next grand prix after that.”

And Button says the remaining five races of the season are likely to be viewed as test sessions for McLaren in order to try and bounce back in 2016.

“I think just in a team you like to keep it equal but in the position we’re in we need to get the engines in the back of the car, we need to do a lot of mileage to see how it is for the future, for next year. So the next few races are going to be testing for us, they’re going to be very difficult.

"The only race that I think we could have a chance of doing OK is probably Austin and after that this car is going to be a test bed. We’re doing our best to get everything out of the car and to get the best result possible, but simply it will be a lot of testing for us and doing things that maybe you wouldn’t normally do in a season with a car and with the engine to make sure we are in the right place for next year.”

Massa quickest in wet FP2 in Sochi

AS IT HAPPENED: Russian Grand Prix FP2