 Dan Gurney akanga aedza Champ Car yaMickey Thompson ine injini yokumashure nokuda kwe 1962 Indianapolis 500 uye, achigutsikana kuti marongerwe akanga ari anokunda mumakwikwi, akasvika Colin Chapman weLotus nepfungwa yokuvaka motokari yakafanana nokuda kwe1963 Indianapolis 500. Chapman akapinda mujaho wa1962 uye Gurney akabva aronga musangano naFord kuti awane injini yakakodzera. Gare gare gore iroro, Chapman akanga ane Jim Clark uye Lotus mechanics Jim Endruweit naDick Scammell vakatumirwa kuIndianapolis mushure me1962 United States Grand Prix kuti vaite zvimwe zviedzo neLotus 25 yakakunda mujaho. Migumisiro yakabvumikisa kuva yakanaka, uye kuvakwa kwakatanga pamotokari itsva, rudzi rwa 29. Zvichienderana ne25, yakanga iri motokari yakafanana zvikuru iyo yakasiyana zvikuru mukuisa 4195 cc 255ci Ford V8 neWeber carburettors inobereka 376 bhp 281 kW kuburikidza neColotti T.37 gearbox. Yakanga yakakura zvishoma kupfuura 25 uye yakanga yakagadzirirwa ne offset suspension uye Dunlop pamberi uye Halibrand kumashure kugogodza-kubvisa mavhiri kuti zvive nyore kukurumidza kumira. Motokari nhatu dzakavakwa dzose; wokutanga ari chaizvoizvo kukura prototype, pashure iyo motokari mbiri dzakavakwa kuti Clark uye Gurney. 