They're asking EUR 300K for it. That's about twice the market price for a similar car with no Schumacher history; so they obviously don't agree with you
“…the car was never (or almost never) used by him [Schumacher] but was given as a gift to his father. In fact, it is still registered in the name of Rolf Schumacher (that's his father's name, not [his brother] Ralf).” FYI actual link to the for sale advert: https://www.gallery-aaldering.com/ferrari-f430-f1-spider-ex-schumacher-2005/