Valtteri Bottas set the pace for the Silver Arrows during Friday practice for the British Grand Prix at Silverstone.
Valtteri: 'I'm impressed by the new cars on this track'
The Finn topped the opening session with a 1:29.106 before lowering the benchmark again in FP2 - clocking a 1:28.496 - ending the day fastest of all, some 0.7s quicker than last year's pole time.
"We've started the weekend really well," said Valtteri. "In the first session, the balance was not too far away, so a positive start.
"There is still work to do to get the car more driveable and to be able to trust it more in the high-speed corners. But overall I think it was a good start for the weekend. We just need to work as normal, try and make improvements for tomorrow.
"I'm impressed by the new cars on this track with its high-speed corners - they're so much quicker than before. I'm definitely enjoying it and had a lot of fun, so I'm looking forward to tomorrow.
"You feel more G in the corners and there's a greater effect on your body, quite a big step up from last year. But luckily I'm well prepared for that."
Lewis: 'It's like the greatest rollercoaster ride ever'
Lewis Hamilton had to settle for P2 in both Friday sessions, ending the day just 0.047s shy of his pace-setting team-mate, but the Brit loved his first day back in action.
"Today's been a really good start to the weekend and it's great to be back here at Silverstone," said the four-time British Grand Prix winner.
"The track is absolutely incredible with these new cars. It was already one of the very best circuits in the world, but with this car and the speed we are able to carry through the corners, it's just phenomenal, it's like the greatest rollercoaster ride ever.
"We worked through all the sessions, fine-tuning the balance and I think we're in a good position at this early stage of the weekend. We still need to build upon it, but it's a great foundation moving forward.
"Each time I left the garage I gave the fans a wave and I could see them waving back. I just want them to know that I can see them and I really appreciate all the love and support."
James: 'We've had a really promising start to the weekend'
With the two Silver Arrows locked at the top of the timesheets, Silver Arrows Technical Director James Allison was rightfully pleased with the early signs from Silverstone.
"We've had a really promising start to the weekend, with both cars working well on the three different tyre compounds, as well as showing good pace on both low and high fuel," said James.
"We worked through our programme successfully and now our focus turns to making sure we're in the best possible place to compete on Saturday and Sunday. A good start though overall."