, ▁Aut oline ▁Detroit ▁argued ▁that ▁searches ▁for ▁additional ▁vehicle ▁defect s ▁were ▁likely ▁fruit less , ▁as ▁driver ▁error ▁was ▁the ▁primary ▁cause ▁of ▁the ▁ 0 . 0 0 9 ▁per ▁million ▁rate ▁of ▁Toy ota ▁sudden ▁acceleration ▁inc idents ▁from ▁ 1 9 9 9 ▁to ▁ 2 0 0 9 , ▁with ▁" dem ograph ics ▁and ▁psych ograph ics ", ▁namely ▁elder ly ▁drivers ▁and ▁ped al ▁mis application ▁as ▁factors . ▁Also ▁noted ▁was ▁that ▁drivers ▁with ▁Type ▁II ▁di ab etes ▁( ad ult ▁on set ), ▁which ▁is ▁more ▁common ▁among ▁the ▁elder ly , ▁are ▁subject ▁to ▁reduced ▁ ▁sens ation ▁in ▁their ▁lower ▁extrem ities ▁( per i pher al ▁ne urop ath y ) ▁with ▁related ▁imp air ment ▁in ▁position al ▁knowledge ▁of ▁foot ▁pla cement ▁( prop rio ception ). ▁W ired ▁wrote ▁that ▁since ▁investig ators ▁have ▁been ▁" un able ▁to ▁find ▁evidence ▁supporting ▁drivers ’ ▁claims ▁their ▁Toy ot as ▁suddenly ▁rac ed ▁out ▁of ▁control " ▁operator ▁error ▁is ▁the ▁most ▁likely ▁explanation . ▁However , ▁vict ims ▁and ▁relatives ▁of ▁sudden ▁acceleration ▁cases ▁are ▁commonly ▁unw illing ▁to ▁suspect ▁involved ▁loved ▁ones , ▁and ▁bl ame ▁the ▁vehicle ▁instead . ▁ ▁Analysis ▁of ▁alleg ed ▁Toy ota ▁acceleration ▁reports ▁in ▁The ▁Atlantic ▁and ▁other ▁sources ▁have ▁found ▁the ▁highest ▁distribution ▁of ▁involved ▁drivers ▁between ▁ 7 0 ▁and ▁ 8 0 ▁years ▁old , ▁with ▁the ▁average ▁age ▁ske wing ▁over ▁ 5 5 ;