Silverstone Circuit, UK February 23, 2008 Roger Buxton in the 1930 Alfa Romeo 1750 6C Zagato Spyder.Photo: Peter Collins The intrepid Mark Walker in his much-raced 1922 GN Thunderbug.Photo: Peter Collins Patrick Blakeney-Edwards’ provisionally winning 1928 Frazer Nash Super Sports.Photo: Pete Austin Tom Walker’s spectacular 1952 Allard 5.4-liter J2X Le Mans.Photo: Ken Carrinton