<P> Motor racing began on the Isle of Man in 1904 with the Gordon Bennett Eliminating Trial , restricted to touring automobiles . As the Motor Car Act 1903 placed a speed restriction of 20 mph ( 32 km / h ) on automobiles in the UK , Julian Orde , Secretary of the Automobile Car Club of Britain and Ireland approached the authorities in the Isle of Man for the permission to race automobiles on the island 's public roads . The Highways ( Light Locomotive ) Act 1904 gave permission in the Isle of Man for the 52.15 - mile ( 83.93 km ) Highroads Course for the 1904 Gordon Bennett Eliminating Trial which was won by Clifford Earl ( Napier ) in 7 hours 26.5 minutes for five laps ( 255.5 mi or 411.2 km ) of the Highroads Course . The 1905 Gordon Bennett Trial was held on 30 May 1905 and was again won by Clifford Earl driving a Napier automobile in 6 hours and 6 minutes for six laps of the Highroads Course . This was followed in September 1905 with the first Isle of Man Tourist Trophy Race for racing automobiles , now known as the RAC Tourist Trophy and was won by John Napier ( Arrol - Johnston ) in 6 hours and 9 minutes at an average speed of 33.90 mph ( 54.56 km / h ) . </P>
<P> Motor racing began on the Isle of Man in 1904 with the Gordon Bennett Eliminating Trial , restricted to touring automobiles . As the Motor Car Act 1903 placed a speed restriction of 20 mph ( 32 km / h ) on automobiles in the UK , Julian Orde , Secretary of the Automobile Car Club of Britain and Ireland approached the authorities in the Isle of Man for the permission to race automobiles on the island 's public roads . The Highways ( Light Locomotive ) Act 1904 gave permission in the Isle of Man for the 52.15 - mile ( 83.93 km ) Highroads Course for the 1904 Gordon Bennett Eliminating Trial which was won by Clifford Earl ( Napier ) in 7 hours 26.5 minutes for five laps ( 255.5 mi or 411.2 km ) of the Highroads Course . The 1905 Gordon Bennett Trial was held on 30 May 1905 and was again won by Clifford Earl driving a Napier automobile in 6 hours and 6 minutes for six laps of the Highroads Course . This was followed in September 1905 with the first Isle of Man Tourist Trophy Race for racing automobiles , now known as the RAC Tourist Trophy and was won by John Napier ( Arrol - Johnston ) in 6 hours and 9 minutes at an average speed of 33.90 mph ( 54.56 km / h ) . </P>
where is the tt isle of man held
where is the tt isle of man held
UK
UK