Mercedes AMG Petronas
World Champion Lewis Hamilton hailed Mercedes' progress across the first pre-season test at Jerez.
Hamilton set the third fastest time at Jerez and racked up 116 laps, bringing Mercedes' total for the four day test to over 516, more than any other squad.
"It's been pretty amazing this week to see how reliable the car has been and how much mileage we've covered," said Hamilton, who recovered from a spin in the morning.
"The team here at the track and back at the factories is so enthusiastic and energized which is great to see. We all loved the experience of last year and everyone wants to do it again.
"This is where you prove out the car - looking for as many laps as you can, not searching for fast times. It's been really positive from that perspective and every day here the car has got better as we learn more about it.
"Everyone will keep bringing upgrades through pre-season, so the cars will develop and they will improve and that then carries on through the first race.
"I can't really say much about the performance of the car yet but it doesn't feel any worse than last year's, which is a good sign. I'm fit and ready to go - 117 laps today felt fairly easy - so I'm already looking forward to getting back to it in Barcelona."
