This article is from the Lotus Cars FAQ, by firstname.lastname@example.org (Alan F. Perry) with numerous contributions by others.
The Jensen-Healey was the first production car to use the Lotus 907
engine (developed by Lotus and later used in the Esprit, Elite, Eclat
and Excel). Some say that Lotus used Jensen-Healey to pay for the
engineering costs of the 907 engine and to work the problems out of the
engine before using it in their own cars.