Portuguese Grand Prix - Estoril
Autodromo do Estoril - 71 Laps

Estoril is used by many F1 teams for testing during the off season.
It has many difficult corners and is physically very demanding.
A good balance is of the utmost importance for, despite the many
corners, the cars must still reach speeds of around 190 MPH on the
main straight. This circuit quickly separates the good cars from
the bad ones.