Williams completes upgrades tests on Friday practice for the Hungarian GP

Rob Smedley, Head of Performance Engineering: We completed our schedule and tested all of the upgrades, which seem to be working well. The main work has been on the balance of the car and we still have a bit to do for the option tyre. We seem to have good pace on the prime. We have a lot of data to go through to be ready for tomorrow.

Valtteri Bottas: It was an interesting Friday, we went through all the updates and I'm really happy that they have worked as we expected, so we've made steps forward with the car. This circuit is tighter and it's going to be more difficult for us than the last three grands prix. It's going to be really close tomorrow so we need to work hard to find every tenth and maybe even every hundredth of a second we can gain with the set-up.

Felipe Massa: It was not an easy day for me. I didn't have the most clean day to do long runs, but there is still tomorrow to come. It's not a perfect track for us but we'll try everything we can for qualifying tomorrow to be as competitive as possible. We have run both cars with the new rear wing and it's very positive so far.

Williams Martini Racing