Autódromo José Carlos Pace, also known by its former name Interlagos, is a motorsport circuit located in the city of São Paulo, renamed after Carlos Pace, a Brazilian Formula One driver who had died in a 1977 plane crash. It is well known for being the venue of the Formula One Brazilian Grand Prix.
The circuit is one of a minority of non-oval racing circuits to go in an anti-clockwise direction (Circuit of the Americas, Imola, Istanbul Park, Yas Marina Circuit, Laguna Seca, Singapore, Phillip Island Grand Prix Circuit, Korea International Circuit and Circuit Ricardo Tormo in Valencia, being notable others). In 1979 upgrading work was done and the pit lane was extended past the first left-hand turn (Curva 1), making the corner more narrow, and the pit lane ended right in the middle of Curva 1 and 2. The present design of the track dates back from 1990, when the original circuit was shortened from 7,829 m to only 4,397 m (so that it could fit the new FIA restrictions on track length).
As a consequence of the reduction, the track lost three long straight sections and nine fast curves (5 were lost forever, 4 were made slower and are still there). The original track was full of fast corners and it allowed cars to keep maximum speed for up to twenty seconds and was considered very dangerous (although no one ever died there whilst racing Formula One) and in 1990 the old layout was majorly revised. The new track still had a very long top-speed section that contained bumps, high-speed turns and little run-off area (though the track is very wide at this point).