I am curruntly in Spain, but I am in the military, so I am here temporarily.  I am hoping to take the R4 back to the U.S. with me.  The engine still runs fairly well, it has had a lack of oil changes, that is for sure.  I want to clean it up and try and get it to run better than 80kph.  If I am able to take it back to the states, I will most likely do a complete restoration of the car.  Thank you for the information on the engine.