An... interesting question!
Unfortunately, the answer is no, a poop cannot propel a car. Poop, also known as feces, is a biological waste product that doesn't have the physical properties or energy density to generate the thrust needed to move a vehicle.
Cars require a significant amount of energy to move, which is typically provided by an engine burning fuel (such as gasoline or diesel) or electric motors powered by batteries. The energy released from these sources is what propels the car forward.
Poop, on the other hand, is a relatively low-energy substance that doesn't have the capacity to generate enough force or momentum to move