Triumph Stag Mk1 Signal Red, (LD10) 10th Pre-Production Car The Triumph Stag was announced in 1970 and was, in both looks and ambience, a genuine British-built rival for the Mercedes-Benz SL. Its mellifluous V8 engine promised effortless performance and the glamorous styling by Italian legend Michelotti meant it looked at home in Monte Carlo or Chelsea. Parent company British Leyland were troubled though, and the Stag acquired a reputation for overheating in both the UK and the lucrative US market.Consequently only 25,939 were produced before production ceased in 1977. It has, however, come of age as a classic,and has both a very high survival rate and a thriving owners club