SLC Mampe Lufthansa racecar strange option code!

[johan h]

I was drooling over som SLC Mampe lufthansa pictures and info on the web. Then i found this site where they claim this is one of three genuine cars. I looked at the option list and found a very strange option code:

-665 DO NOT PUT FUEL IN THIS VEHICLE




What does this mean? That it is racefuel in it and you don´t suppose to fill regular gas?

Here is the link: http://www.race-cars.com/carsales/other/1188483701/1188483701ss.htm