▁parts ▁to ▁improve ▁the ▁performance ▁of ▁the ▁vehicle . ▁Having ▁a ▁more ▁efficient ▁racing ▁vehicle ▁will ▁eventually ▁result ▁in ▁winning ▁more ▁difficult ▁races ▁where ▁the ▁winner ' s ▁prize ▁is ▁higher ▁than ▁in ▁the ▁easier ▁races . ▁Event ually , ▁winning ▁certain ▁races ▁will ▁result ▁in ▁acqu iring ▁an ▁international ▁racing ▁license . ▁Part s ▁in ▁the ▁game ▁vary ▁in ▁cost ▁and ▁t ires ▁can ▁only ▁be ▁used ▁a ▁limited ▁number ▁of ▁times ▁before ▁they ▁have ▁to ▁be ▁purchased ▁again . ▁T ires ▁that ▁have ▁the ▁worst ▁handling ▁can ▁be ▁used ▁an ▁un limited ▁number ▁of ▁times . ▁These ▁t ires ▁are ▁the ▁only ▁autom obile ▁parts ▁that ▁are ▁free ▁and ▁the ▁player ▁automatically ▁starts ▁out ▁with ▁these ▁at ▁the ▁beginning ▁of ▁the ▁game ' s ▁" care er ▁mode ." ▁ ▁Other ▁modes ▁In ▁addition ▁to ▁the ▁career ▁( normal ) ▁mode ▁of ▁the ▁game , ▁there ▁is ▁also ▁a ▁" free ▁mode " ▁of ▁the ▁game ▁that ▁allows ▁un limited ▁use ▁of ▁all ▁four ▁vehicles ▁on ▁their ▁respective ▁tracks . ▁These ▁races ▁are ▁done ▁without ▁the ▁dist raction ▁of ▁other ▁vehicles . ▁ ▁All ▁races ▁in ▁" free ▁mode " ▁are ▁single - lap ▁only . ▁There ▁is ▁still ▁a ▁limited ▁amount ▁of ▁nit ro ▁like ▁in ▁the ▁" normal ▁mode " ▁of ▁the ▁game . ▁However , ▁all ▁races ▁done ▁under ▁" free ▁mode " ▁always ▁start ▁with ▁the ▁nit ro ▁gauge ▁filled ▁up . ▁New ▁time ▁records ▁made ▁in ▁the ▁" free ▁mode " ▁are ▁saved ▁into ▁the ▁game