<Tr> <Th> Most wins (manufacturer) </Th> <Td> Chassis: March Dallara (9) Engine: Offenhauser (25) </Td> </Tr> <P> The Desert Diamond West Valley Phoenix Grand Prix was a Verizon IndyCar Series race held at the ISM Raceway in Avondale, Arizona . Open wheel racing in the Phoenix area dates back to 1915 on a dirt oval at the Arizona State Fairgrounds . The race was revived in 1950 by the AAA, and then passed to the United States Auto Club in 1956 . USAC moved the race to the newly built Phoenix International Raceway in 1964 . The race became a CART event in 1979, and joined the Indy Racing League in 1996 . It was held continuously through 2005 . </P> <P> After a hiatus of eleven years, the race was revived by the Verizon IndyCar Series in 2016 . It was held on Saturday night under the lights . Long considered a popular Indy car track, Phoenix has a rich history of open wheel races, including a spectacular crash involving Johnny Rutherford (1980), and the final career victory for Indy legend Mario Andretti (1993). </P> <P> During its time on the USAC Championship Car circuit, Phoenix International Raceway typically held two races annually, one in the spring, and one in the fall . During the CART years, two races were scheduled through the mid-1980s, but the track dropped down to one race per year starting in 1987 . In many years, Phoenix served as the CART season opener . After a feud between the track ownership and CART series officials, the track was dropped from the CART schedule after 1995, and immediately switched to the Indy Racing League beginning in 1996 . </P>

Who won the indy car race in phoenix