to John o' Groats. The trip had originally been filmed using the Biocolour process, developed by Claude's father William Friese-Greene and the film had degraded. The original print of Claude's film was subjected to computer enhancement by the British Film Institute to remove the flickering problem inherent in the Biocolour process. In September 1983 rally and trials driver Dennis Greenslade from Cornwall created a new sole driver non-stop record drive from Land's End to John o'Groats and return using the newly released Audi 80 Quattro. The time taken was 24hours 32 minutes. Following this record achievement which also raised £10,000 for three charities he established The Land's End - John o'Groats Association formed to authenticate all journeys between these two iconic landmarks. In 1984, Neal Champion covered from John o' Groats to Land's End in 11 hours, 14 minutes, on a Kawasaki GPZ750 Turbo. In 1984, Christian Conzendorf-Mattner accompanied by Dennis Greenslade covered the route from Land's End to John o'Groats—there and back non-stop other than for fuel—in 31 hours 22 mins in a 1941 BMW 327/80. The record run was monitored by a team of journalists from a motoring magazine and is the current record for prewar classic cars end to end, non-stop, two drivers. The Land's End - John o'Groats Association awards this trophy to new record holders. On 17 September 1988, Andrew Frankel and Mark Connaughton drove from Land's End to John o' Groats in a standard production Alfa Romeo 164 in 12 hours 30 minutes, including stops for refuelling. In 1993, John Brown initiated the Land's End to John o' Groats Historic Reliability Trial, a race for vintage road vehicles. The race is held each December and is a tough, three-day rally for old and classic cars, built between the 1920s and 1970s. The route takes a long route, using remote upland roads of the west of England, Wales (during the night), the Pennines and Scotland. Medals are awarded in gold, silver and bronze categories. On 15–16 April 1997, Hugh Edeleanu drove the route in a JCB excavator in a time of 22 hours, 10 minutes and 30 seconds. In June 2001, Wayne Booth became the first person to do the journey by motorcycle without stopping; the 37-year-old completed the historic trip in 14 hours and 52 minutes, averaging 57 mph, on a modified 1,000cc Honda Varedero, complete with additional 74-litre petrol tank. The meticulously researched