Tom Purves with RAC 1901 Mors. Photo: Peter Collins1904 Fiat of Jan Bruijn negotiates Bus Lanes. Photo: Peter CollinsThe finish line draws a respectable crowd as the cars lucky enough to finish cruise past. Photo: James Bearne1904 Cadillac of Nick Grewall. Photo: Peter CollinsThe Harrods car cruises past Big Ben. Photo: Steve Finn