This car was driven by Rick Mears to victory at the 1991 Marlboro 500, at Michigan International Speedway. The car was also driven by Rick Mears at Mid-Ohio, Elkhart Lake, Denver and Laguna Seca.
Penske Racing teammates Emerson Fittipaldi and Paul Tracy also drove this car in test sessions.
Mears victory in August 1991 at Michigan was his last IndyCar race win. He finished fourth in points that year, including the pole and record-tying fourth Indianapolis 500 win.
Mears is the third of three men to have won the Indianapolis 500 four times (1979, 1984, 1988, 1991), and the current record-holder for pole positions in the race with six (1979, 1982, 1986, 1988, 1989, 1991). Mears is also a three-time CART national champion (1979, 1981 and 1982).
He retired at the end of the 1992 season.