Driver: Felipe MassaChassis / Engine: FW37-01 / PU106B HybridLocation: Jerez de la Frontera 4.428kmObjectives: Aero work, systems and reliability checksWeather: Damp in the morning, overcast and mildAir & track temps: 11 - 15ºC / 11 - 16ºCRod Nelson, Chief Test & Support Engineer: It's been another good day and good to have Felipe get his first drive of the FW37 today. We have started to do a little more chassis work as we continue to work through our plan. Felipe gave us very much the same feedback as Valtteri did, so it's pleasing that they share the same views and characteristics as each other on the FW37. Overall it’s been a positive day.Felipe Massa: I am happy after a good first day in the car. The FW37 is another step forward from where we left the FW36, which is promising. I am also confident in the car set-up. The feeling in the car was good even for a first impression and it's well balanced. We lost a bit of time in the morning due to the wet weather so hopefully tomorrow we can continue to get the miles in and head to Barcelona well prepared.