Coys to hold largest historic Porsche auction at Porsche Classics at the Castle. In the year of the 60th anniversary of the first production 356 Carrera, Coys auctioneers have lined up a selection of 60 of the finest and most rare examples of the Stuttgart manufacturer. Included are well-loved tractors through to the state of the art Carrera GT supercar, with particular attention on the classic and pure pre-1974 cars. Chris Routledge, Managing Partner at Coys, said: “Coys have long been the ...