Mr Michael Fitzsimons's Opel garage is to sell on part of the old Ashtown Tin Box Company premises, opposite the former Phoenix Park racecourse at Navan Road, Dublin. Costello Commercial is quoting a guideline price of £2.5 million for most of the buildings and an adjoining area totalling 1.7 acres, which is to be sold by tender on November 17th. Mr Fitzsimons recently paid in excess of £5 million for the entire site of around four acres. He is expected to develop a car showrooms on the section of the site he is retaining.