One section of the driveshaft is longer. Engine harness is different but very similar. AC bracket and tensioner are different. Front motor mount bracket is different. Intercooler and piping obviously are different. Top hats are different and springs are a different length. VR4 has 4 lug hubs, Radiators are different. Rear suspension is different due to 4WS but can be interchanged. VR4 power steering reservoir is different.
Most other parts are interchangeable.