"What's Different Between Bronco and Bronco Sport?
CHASSIS
Bronco is a body-on-frame truck-based traditional SUV with a longitudinally mounted engine, based on the next-generation Ford Ranger pickup truck.
Bronco Sport is based on the transverse-engine, FWD-based, unitized body-and-chassis Ford Escape crossover. These are typically described as "car-based SUVs," but as Ford doesn't sell sedans anymore, the description "unibody" will have to suffice."
https://www.motortrend.com/cars/ford/bronco/2021/2021-ford-bronco-vs-bronco-sport-model-difference/
