The Ferrari 643 was a Formula One car designed by Steve Nichols and Jean-Claude Migeot and was built by Scuderia Ferrari for use in the 1991 Formula One season. Introduced at the French Grand Prix it initially looked to have potential to run at the front. Alain Prost qualified on the front row and took the lead, and although he was eventually passed by Nigel Mansell in his Renault powered Williams FW14, a 2nd place in the car's first race looked promising. Aside from almost always being on the front part of the grid, it was not to be however.

Although arguably one of the prettier cars in the field, the car was not as competitive a car as the Williams FW14 and McLaren MP4/6 cars; and the car's results (or lack thereof) was one of the main reasons for the falling out between Prost and Ferrari, with the Frenchman eventually saying that "a truck would be easier to drive than this car".. Following the Japanese Grand Prix, Prost was fired for the second time in his F1 career by a works team. The team replaced him in Australia with test driver Gianni Morbidelli.

Coordinates: 44°31′57″N 10°51′51″E / 44.532447°N 10.864137°E / 44.532447; 10.864137

Ferrari S.p.A. is an Italian sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari in 1929, as Scuderia Ferrari, the company sponsored drivers and manufactured race cars before moving into production of street-legal vehicles as Ferrari S.p.A. in 1947. Throughout its history, the company has been noted for its continued participation in racing, especially in Formula One, where it has had great success. Ferrari road cars are generally seen as a symbol of luxury and wealth.

Enzo Ferrari wasn't initially interested in the idea of producing road cars when he formed Scuderia Ferrari (literally "Ferrari Stable", and usually used to mean "Team Ferrari", it is correctly pronounced [skudeˈriːa]) in 1928 as a sponsor for amateur drivers headquartered in Modena. Ferrari prepared, and successfully raced, various drivers in Alfa Romeo cars until 1938, when he was hired by Alfa Romeo to head their motor racing department.

Alain Marie Pascal Prost, OBE, Chevalier de la Légion d'honneur (born 24 February 1955 in Lorette, Loire) is a French racing driver. A four-time Formula One Drivers' Champion, Prost has won more titles than any driver except for Juan Manuel Fangio (five championships), and Michael Schumacher (seven championships). From 1987 until 2001 Prost held the record for most Grand Prix victories. Schumacher surpassed Prost's total of 51 victories at the 2001 Belgian Grand Prix. In 1999, Prost received the World Sports Awards of the Century in the motor sport category.

Prost discovered karting at the age of 14 during a family holiday. He progressed through motor sport's junior ranks, winning the French and European Formula Three championships, before joining the McLaren Formula One team in 1980 at the age of 25. He finished in the points on his Formula One début and took his first race victory at his home Grand Prix in France a year later, while he was driving for Renault's factory team.

Gianni Morbidelli (born January 13, 1968 in Pesaro) is a racing driver from Italy. He is the son of Giancarlo Morbidelli, the founder of Morbidelli motorcycle company which had success in Grand Prix motorcycle racing. Morbidelli participated in 70 Formula One Grands Prix, debuting on March 11, 1990. He achieved one podium, and scored a total of 8.5 championship points. He competes in the Superstars Series.

Morbidelli starting karting in 1980, spending six years until he became the EUR-AM championship winner, before moving to Italian Formula Three. He became Italian Formula 3 and Formula 3 European Cup champion in 1989, as well as winning two races in Italian Touring Cars. He then moved to the Scuderia Italia Formula One team, doing the first 2 races of the 1990 F1 season as stand-in for Emanuele Pirro, before concentrating on Formula 3000. He won 1 race and finished 5th in the 1990 championship, as well as undertaking test driver duties for Scuderia Ferrari for that year.

Resuming his F1 career at the end of the 1990 season, Morbidelli competed in the final two races of the season with Minardi, where he remained until the end of 1992. He briefly joined Ferrari for the 1991 Australian Grand Prix, drafted in after Alain Prost left the team, where Morbidelli earned his first Formula One points, earning half a point for 6th after a rain-shortened race. A lack of sponsorship led to him leaving Minardi to rejoin Italian Touring Cars for 1993, where he drove a Alfa Romeo 155 to two wins for Alfa Corse, before being hired by Footwork Arrows for 1994. He managed four point-scoring positions in two years with the team, including his only podium place finish in the 1995 Australian Grand Prix, earning third place in a race of high attrition. Morbidelli became Footwork Arrows' most successful driver, with a total of eight points for the team.