Emerson Fittipaldi had four wins in the Chevrolet-powered Penske PC-21 during the 1992 season, but the car was considered quite uncompetitive in 1992 and 1993 compared to the Lola T92-00 and T93-00.
Ayrton Senna tested the Penske PC-21 on December 20, 1992 after his 1993 McLaren contract negotiations stalled. He ultimately never raced it.
First seen in sim racing with IndyCar Racing (1993). This car with #16 ALUMAX/AMAX livery was the cover image of all the boxes for IndyCar Racing after version 1.0, replacing the 1992 #1 Lola T92-00 of Michael Andretti: