Text in brackets: brief, visual differences to previous year 
								Text in white: drawing to come
								Mk I 1962-64 Triumph Spitfire 1200cc 
								Wire wheels option(1963) 
								Mk II 1965-67 Triumph Spitfire 1200cc 
								wire wheels option 
								(specs: engine performance, no obvious external differences as far as I know) 
								Mk III 1967-71 Triumph Spitfire 1300cc  
								Wire wheels option 
								(raised bumper  interior) 
								Mk IV 1971-74 Triumph Spitfire 1300cc 
								Wire wheels option 
								Hard top & spoiler version 
								(cut-off rear end  wheels  dashboard  rear suspension) 
								Mk V 1975-81 Triumph Spitfire 1500cc 
								(specs: longer stroke, peformance  weight) 
								 
								GT6 Mk 1 1966-68  
								GT6 Mk 2 1968-70 
								GT6 Mk3 1970-73 
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