Italy
Autódromo Hermanos Emiliozzi (formerly known as Autódromo Sudamericano de Olavarría until 2008) is a 5.079 km (3.156 mi) motor sports circuit located near Olavarría, Argentina. The circuit was opened in 1998 and is notable for its minimal elevation change (being constructed on a flat, grassy plain)
and its very long (~1 km) main straight.
Listen to the audio guide for Autódromo Sudamericano de Olavarría Free on WIP — starts by itself when you arrive, even with the screen off