Ferrari 643
| Season: | 1991 | | | | Drive: | Rear | | | | Gearbox: | Rear longitudinal overhanging gearbox | | | | Gearbox Control: | automatic with electronic management | | | | Number of speeds: | 7 + reverse | | | | Brakes: | Ventilated outboard carbon discs, Brembo monobloc 4-piston callipers | | | | Front suspension: | Double wishbones: 2 overlapping elliptic section triangles, strut or push-rod springing | | | | Rear suspension: | Double wishbones: upper triangle, lower trapezium, strut or push-rod springing | | | | Chassis: | Monococque in composite: carbon fibre and Kevlar honeycomb; Composite. Fully detachable and removable | | | | Engine placement: | Rear | | | | Differential: | automatic with electronic management | | | | Length: | 4,400 mm | | | | Width: | 2,130 mm | | | | Height: | 1,004 mm | | | | Fronttrack: | 1,800 mm | | | | Reartrack: | 1,675 mm | | | | Wheelbase: | 2,881 mm | | | | Weight: | 505 kg with water and oil | | | | Number of wheels: | 4 | | | | Wheels: | Front 25x10", rear 26x15" | | | | Power: | Marelli 50/70 W | | | | Battery: | Yuasa - 12 Volt | | |
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Statistics
| Statistic | # | Percentage | First | Last |
| Number of Grand Prix | 20 | 100% |  1991 |  1991 |
| Number of starts | 20 | 100.00% | 1991 | 1991 |
| Number of finishes | 11 | 55.00% | 1991 | 1991 |
| Number of finishes on podium | 6 | 30.00% | 1991 |  1991 |
| Number of finishes in points | 11 | 55.00% | 1991 | 1991 |
| Number of retirements | 9 | 45.00% |  1991 | 1991 |
