▁the ▁American ▁trans it ▁bus ▁market , ▁although ▁it ▁was ▁still ▁a ▁distant ▁second ▁with ▁G M ▁building ▁more ▁than ▁twice ▁as ▁many ▁bus es . ▁The ▁Fl x ible ▁New ▁Look ▁bus ▁be ars ▁a ▁close ▁res embl ance ▁to ▁the ▁G M ▁New ▁Look ▁bus , ▁and ▁in ▁fact ▁Fl x ible ▁New ▁Looks ▁were ▁commonly ▁equ ipped ▁with ▁G M ▁engines . ▁This ▁was ▁due ▁largely ▁to ▁the ▁consent ▁dec ree ▁resulting ▁from ▁the ▁ 1 9 5 6 ▁anti - tr ust ▁case ▁United ▁States ▁v . ▁General ▁Mot ors ▁Cor p . ▁which ▁mand ated ▁that ▁G M ' s ▁bus ▁components , ▁engines , ▁and ▁transm issions ▁be ▁made ▁available ▁for ▁sale ▁to ▁other ▁manufact ur ers , ▁free ▁of ▁roy alt ies . ▁However , ▁it ▁should ▁also ▁be ▁noted ▁that ▁prior ▁to ▁the ▁consent ▁dec ree ▁a ▁small ▁number ▁of ▁earlier ▁model ▁( pre - New ▁Look ) ▁Fl x ible ▁bus es ▁were ▁built ▁with ▁G M ▁engines , ▁at ▁the ▁same ▁time ▁that ▁G M ▁vice ▁president ▁Charles ▁F . ▁K etter ing ▁was ▁also ▁chairman ▁of ▁the ▁board ▁at ▁Fl x ible . ▁It ▁has ▁been ▁suggested ▁that ▁prior ▁to ▁the ▁consent ▁dec ree ▁G M ▁may ▁have ▁made ▁its ▁dies el ▁engines ▁available ▁to ▁Fl x ible ▁in ▁order ▁to ▁reduce ▁the ▁critic isms ▁of ▁G M ' s ▁business ▁practices ▁that ▁some ▁felt ▁were ▁mon opol istic . ▁ ▁Another ▁area ▁of ▁competition ▁between ▁the ▁two ▁manufact ur ers ,