Marlboro Team Penske expanded to a three-car operation with defending Indianapolis 500 winner Emerson Fittipaldi, rising star Paul Tracy, and 1990 IndyCar Champion and 1992 Indy 500 winner Al Unser Jr., defecting from Galles Racing after a disappointing 1993 campaign left him with just one win (Vancouver) and 7th in the standings. Penske changed to the new Ilmor engine in association with Mercedes-Benz rather than Chevrolet, who withdrew after 1993. Customer team Bettenhausen Motorsports with driver Stefan Johansson received the year-old PC-22 chassis as Penske began to utilise the new PC-23.