<prompt> Pedzisa mutsara unotevera: Sezvakanga zvarongwa, Ganassi akaparadzana kuti aumbe boka rake muna 1990 Chip Ganassi Racing. Pat Patrick akatora chirongwa chemotokari yeAlfa Romeo Indy yaimbotungamirirwa naAlex Morales Motorsports. Roberto Guerrero akanyoresa somutyairi mukuru naAl Unser Sr. vachityaira motokari yechipiri pa  <response>: Indy 500 neMichigan 500. 