Put in a garage 47 years ago and not used since: Rare one-owner 1971 Iso Grifo supercar stored in London from 1974 could sell at auction for ?L250,000. 14 Sep 2021 Pictured: Put in a garage 47 years ago and not used since: Rare one-owner 1971 Iso Grifo supercar stored in London from 1974 could sell at auction for ?L250,000. Photo credit: Bonhams/MEGA TheMegaAgency.com +1 888 505 6342