Complex sentence: The drivers even claimed the surface was so bad that it was actually dangerous to drive those cars at the Sāo Paulo city-located circuit, and although Scheckter and the other concerned drivers nearly succeeded in stopping the race, it went ahead.
Split into simpler sentences: The drivers even claimed the surface was so bad that it was actually dangerous to drive those cars at the Sāo Paulo city-located circuit. Although Scheckter and the other concerned drivers nearly succeeded in stopping the race, it went ahead.