It was a difficult day for home hero Felipe Massa who struggled to get to grips with his home circuit, Interlagos.
The Brazilian finished both practice sessions behind Williams teammate Valtteri Bottas.
Massa struggled with rear end grip and was often losing the rear end when applying the throttle.
Massa, who has won the Brazilian Grand Prix on two occasions, says there is a lot of work to do to improve the balance of his car ahead of qualifying for the Brazilian Grand Prix.
“It was a very difficult day. The car was unstable and I struggled to get the grip I wanted at the rear. I don’t think I had one clean lap without losing the rear at some point. The surface offers low grip but very high tyre degradation, so the car was sliding a lot.
“We have a lot of work to do to tonight to make the car a bit easier to drive and more competitive for qualifying tomorrow.”
Massa’s teammate Bottas fared much better, finishing in the top seven in both sessions.
