Jaguar XJ S / XJS / XJ-S HE (High Efficiency)
The Jaguar XJS HE (High Efficiency) commenced production in 1981 until 1996. From 1986, the Hess & Eisenhardt modified convertible was available from some dealers before the official Jaguar built convertible appeared in 1988.
Harvey, C. (1981) The Classic Jaguar Saloons – A Collector’s Guide, London: Motor Racing Publications Ltd
Viart, B. & Cognet, M. (1985) Jaguar – A tradition of sports car, Yeovil: Haynes Publishing Group
Skilleter, P. (1984) The XJ-Series Jaguars – A Collector’s Guide, Croydon: Motor Racing Publications Ltd