They have the same components except the engine

• Transmission (usually larger and more expensive than the engine)
• Exhaust, muffler and catalytic converter
• Gas tank, fuel pump and vapor hose
• Ignition coil(s), spark plugs, oil pump, intake and exhaust manifolds and fuel injectors
• Fucking belts
• CV joints, differentials and transfer case (I think)
• A bunch of sensors
• Throttle body