Watch: Valtteri Bottas explains helmet alterations
Perhaps some differences which have slipped under the radar during the winter. The helmet features some changes and Valtteri Bottas is on hand to talk us through the updates.
More than meets the eye... @ValtteriBottas on how @F1 helmets have changed for 2019 pic.twitter.com/xPVfjR3kY5
— Mercedes-AMG F1 (@MercedesAMGF1) March 9, 2019