Stone,
That's a difficult one to answer. They are wider and longer. The wheels, tracks, sprockets, dampers and many other parts are the same as the rest of the variants. The final drives are different, but the Stormer final drives are now being fitted to the other variants. Not sure how the Stormer engine and gearbox compare to the CVR(T) (D) variants, but they will be different to the Petrol ones. A lot of parts such as the clutch are upgraded to take the extra torque from the diesel engine, and the brakes are also uprated.
CVR(T) vehicles are constantly having new parts fitted, they are quite different now to how they were built.
Chris