1991 Life Grand Prix of Brazil
From Formula Rejects Wiki
The 1991 Life Grande Prêmio do Brasil was held at Autódromo Internacional Nelson Piquet on December 1, 1991. It was the first and only non-championship race during the season. As such, some of the regular 1991 teams decided not to take part. Instead, the race saw many first-time entrants willing to get some experience from the series before entering full-time in the next season.