▁ 1 9 5 4 . ▁In ▁the ▁company ' s ▁quarter ly ▁report , ▁Har low ▁Curt ice ▁and ▁Alfred ▁P . ▁Slo an ▁said : ▁" The ▁autom obile ▁industry ▁is ▁experien cing ▁the ▁best ▁year ▁in ▁its ▁history . ▁Conf idence ▁in ▁progress ▁of ▁the ▁national ▁economy ▁is ▁w ides p read ▁and ▁the ▁public ▁has ▁the ▁desire ▁and ▁ability ▁to ▁buy ." ▁ ▁October ▁ 3 1 ▁- ▁V ot ers ▁in ▁Warren ▁Township ▁voted ▁to ▁incorpor ate ▁as ▁a ▁city ▁by ▁a ▁vote ▁count ▁of ▁ 4 , 1 4 2 ▁to ▁ 1 , 5 3 7 . ▁At ▁the ▁time , ▁Warren ▁Township ▁was ▁growing ▁rapidly ▁from ▁ 2 2 , 0 0 0 ▁in ▁ 1 9 4 0 ▁to ▁ 4 2 , 0 0 0 ▁in ▁ 1 9 5 0 ▁and ▁ 5 8 , 0 0 0 ▁in ▁ 1 9 5 5 . ▁ ▁The ▁population ▁was ▁princip ally ▁in ▁the ▁southern ▁part ▁of ▁the ▁town ship ▁from ▁E ight ▁M ile ▁to ▁Ten ▁M ile ▁Ro ads ▁and ▁along ▁Van ▁Dy ke . ▁ ▁The ▁area ▁along ▁M ound ▁Road ▁had ▁become ▁a ▁center ▁for ▁autom obile ▁manufact uring ▁with ▁General ▁Mot ors , ▁Ford , ▁and ▁Ch rys ler ▁fact ories ▁and ▁the ▁ 8 2 3 - acre ▁General ▁Mot ors ▁Techn ical ▁Center . ▁The ▁existing ▁Village ▁of ▁Warren ▁became ▁a ▁part ▁of ▁the ▁new ▁city . ▁The ▁city ▁covered ▁most ▁of ▁a ▁six - mile