Editing Triumph TR7 (section)

===TR7 drophead coupé===
[[File:Triumph TR7 cabriolet 1998cc Aug 1982.JPG|thumb|Triumph TR7 cabriolet 1,998cc]]

Because of proposed US legislation on roll-over protection at the time of its launch,{{citation needed|date=August 2012}} the TR7 was not initially available as a convertible. In early 1979, Triumph belatedly introduced a convertible version, called the "TR7 drophead coupé" (DHC), which first went on sale in the US (the original hardtop model being known as the "fixedhead coupé", or FHC). A small number of pre-production cars were manufactured at Speke in 1978, soon after the pre-production TR7 V8 (later designated TR8) and TR7 Sprint cars. The British market received it in early 1980. The prototype for the convertible version of the original Harris Mann design came from Michelotti and the engineering to make it work was done by Triumph.<ref name=TR7UntoldStoryConv>{{cite book |title=Triumph TR7 The Untold Story|last=Knowles|first=David|year=2007|publisher=Crowood Press|isbn=978-1-86126-891-4 |pages=173–190}}</ref>