"I hope it’s a significant difference this weekend and I hope that it helps us,” Lewis Hamilton said of the upgrade.
“I’m excited. We haven’t really bolted anything to the car this year.
“It’s one of the first real serious upgrades. It’s great when you get out there because you feel those couple of points (of downforce) straight away, in a certain corner, you feel those improvements so I’m looking forward to experiencing it tomorrow and will try and figure out where those improvements are on the circuit.
“The development race is always tight and I think up until now, we haven’t had a lot of development parts on the car.
“I’m aware the guys are working harder and harder to ensure we bring quality rather than quantity so it’s great to see some new bits this weekend, excited to try them on track.”
Both Hamilton and team-mate Valtteri Bottas will sample the new bodywork during opening practice on Friday, with Bottas equally enthusiastic about the package.
“Of course we’ll have to find out but it’s a decent upgrade that was very much needed like any small gain this year and I’m looking forward to trying it out,” said Bottas."
https://www.speedcafe.com/2018/06/29/mercedes-to-debut-upgrade-package-in-austria/