Continuous rain made the first practice sessions for this weekend’s Japanese Grand Prix really interesting, according to the tyres supplier.
The intermediate tyres were the fasted rubber on the challenging and technical Suzuka circuit this morning, when Heikki Kovalainen performed the fastest lap for McLaren on a wet but drying track.
However, continuous rain during the afternoon meant that only the final 30 minutes saw timed laps and only Bridgestone’s wet tyre was used.
Force India driver Adrian Sutil was the fastest driver, but not all drivers completed timed laps.
Hirohide Hamashima, director of motorsport tyre development for Bridgestone, said: “Today we have learnt that our latest specification intermediate tyre works very well here.
“This tyre stood up well for around 20 laps when used on a drying track. The rain through most of the second session meant no running took place for the first hour.
“This makes the weekend very interesting as the teams have no data from the dry tyres today.”
The unpredictability of the weather could also throw a spoke in the works during the qualifying sessions tomorrow.
Hamashima added: “Any data learnt from this morning using the wet and intermediate tyres will be lost in translation for using the dry tyres if the weather is better tomorrow.
“If it is wet then we will have a very interesting day as the grid could be determined by a wet qualifying session. If it is dry it will also be very interesting as the teams will have to learn the hard and soft tyre performance with only limited track time.
“This gives the teams a big challenge, not just for qualifying but also for Sunday’s race.”
Alex Kapadia, Operations Team