<prompt> Pedzisa mutsara unotevera: Zviratidzo zvehunyanzvi zveIndianapolis 500 parizvino zvakanyorwa neIndyCar. Mitemo yacho inowanzova yakafanana nemimwe mijaho yose yeIndyCar. Munguva yakapfuura, kunyanya munguva iyo USAC yakatendera Indy 500 asi CART yakatendera mimwe mijaho yemotokari yeIndy, mitemo paIndy yaisiyana zvishoma pane dzimwe nguva. Mugumisiro wacho, somuenzaniso, waizova wokuti chassis chaiyo kana kuti gadziriro yeinjini inobvumirwa nomutemo paIndy, asi kwete pamitambo inobvumirwa neCART. Izvi zvaive zvakajairika muma1980 uye kutanga kwema1990, apo stock-block injini kureva iyo V-6 Buick dzakapihwa huwandu hwakawedzerwa hwe turbocharger kukurudzira neUSAC kuIndy, zvichienzaniswa neyakagadzirwa-yakagadzirwa V-8 quad-cam injini. Nepo stock block injini dzaive dzepamutemo mumakwikwi eCART, ivo havana kupihwa mukana wekuwedzera, izvo zvakanyatsoita kuti vasave nemakwikwi, uye vakarambidza kushandiswa kwavo nezvikwata. Chiratidzo chakakurumbira zvikuru chemitemo yeUSAC yakanga iri injini yeMercedes-Benz 500I yakavakwa neIlmor yakaiswa naRoger Penske muna  <response>: 1994. 