That umbrella in the boot looks suspicious to me..
Could it be the poison-tipped one used to assasinate Georgi Markov in the late seventies,and the reason why the car has so few miles is that it has been used as cover for the storage for the murder weapon?
Is that rust on the front wing or just a bad photo? also that "crack" on the dash is a bit suspicious, right next to the instrument binacle, probably done when the mileage was being turned back.