The only reference I could find to CSX2001 with its breadvan add-on was when it raced at the Paris 1000km race (round 20 of the World Sportscar Championship) in 1964.
Not true, apparently, the rumour that he was removed because he was too ugly to be parked next to a Ferrari 250 GTO ....CSX2001 retired with engine problems.
Here's another picture of him...
Note how the rear fender flare is blended into the door.
Cheers!
Glen