(Dec 2007)
The white one shipped to Moline, R5642 and sold at auction by Dick Marty has a short enough history that it should still have the original engine. 

R5642 was originally shipped to Moline IL.<P>

R5642 Toronto but rumored sold / 5642 Was sold by Dick Marty in Canada at a RM auction about 2004

R5642 was built without P/S.

R5642 history (Oct 2008) by Richard Pianca (SDC Forum-Retired)

Henry Hargrove owned H&H Motors in Moline Illinois and was in need of some money to keep his  dealership afloat.  His uncle loaned him a sum of money and was not being repaid in a timely  manner, so the uncle ordered the white R-3 (R-5642).  

Upon delivery he took it as a partial payment (for the loan).  Geo Krem ultimately traded the uncle, his low mileage gold Avanti, a trailer and if memory
 serves me correctly a Lark of some sort for the R-3. 

A few years ago, I received a telephone call from the uncles widow asking assistance in selling  the gold Avanti. (The uncle had died eleven years prior).

It was sold to a gent in the Chicago suburbs. He detailed the chassis and motor and motor  compartment and has had it at a couple of SDC meets. It was still a very low mileage car. 

I looked at H&H Motors dealership record in So.Bend. His franchise was an on and off thing. I  guess when his financial status fell below a stated amount Studebaker would cancel his contract  only to be reinstated when he was financially sound.