The Ford Motor Company E-Series Cutaway is a van chassis used for cutaway commercial and school buses. It is available in two types: the E-350 Super Duty and E-450 Super Duty which are differentiated by their gross vehicle weight rating (GVWR); with the E-450 having the higher GVWR.
https://www.cptdb.ca/wiki/index.php/Ford_Motor_Company_E-Series_Cutaway

