One of Britain's rarest cars - believed to be the only one of its kind left in existence - has gone on display at a museum after being restored to its former glory.<br /><br />The 1969 Hillman GT has been lovingly restored over the past 12 months after it was bought at auction for £5,300 last year.<br /><br />The classic car has now gone on display at the British Motor Museum, in Gaydon, Warks., until autumn 2024, after which time it will go under the hammer again.<br /><br />This high-performance saloon was built in Renfrewshire, Scotland and unveiled at the Paris Motor Show in 1969.