"But only 17 were ever made, and when it's cleaned up and auctioned in Paris next month, experts believe it will fetch at least 3 million pounds ($4.3 million) and possibly much more."
Try to fix it up and drive it around?
Not a chance. Anything that was changed would decrease the value.
I'd sell it too.
For the dough, sure.
But also because a collector that could afford it would also most likely keep it as original as possible.