Alastair Dunn and family

704= £58m Car sales

Dunn, 59, chairs Thornwood Investments, a family-controlled car dealership that operates in Scotland but is based in Hampshire. Its net assets in 2002-03 have remained at £43.3m and the Dunns have also sold a subsidiary and collected £5.4m in dividends in the past year.

618=
2003: £58m