On the Diva stand at the Olympia (Racing Car Show, January 1965), alongside the current production Diva GT, was a new version using a rear-mounted Imp engine - a first attempt by a really succesful racing marque at extracting the Rootes baby's full potential. This one is lower than the original Diva and, judging by other people's Imps, it should show even the older Divas the way back to the paddock, given time.

Small Car 1965 February, p. 10-11

Diva Demon

One of the lesser known cars in the list of Imp powered machines.
It was manufactured in 1965 and was appropriately named Diva Demon. The car was exhibited for the first time at the Racing Car Show in January of that year, so must be the first kit car to be based on the Imp. The engine was turned around to lie amidships. The prototype version had aluminium panels, but proposed production examples were to be fitted with a glass fibre body.
The manufacturers of this strange machine were named Diva Cars ltd. of 94 Camberwell Road, South London.

Diva Valkyr

The Valkyr was shown at the same show, a coupé. Or maybe it was the same car ?? It also had the engine mid-mounted in a space-frame chassis. Despite it's appearance, it was intended for road use.
Rootes seemed interested in producing, but Diva decided not to use the Imp engine after all (but some iron push rod unit). Another source states nothing came of it, the Valkyr remained just a prototype.

The marque Diva only existed for a few years. The number of cars of this name is not overpowering.
In 1962 Don Sim came to work for Tunex Conversions in London. He designed a small sportscar for them. It was called the Diva GT and had a Ford engine. It had independent suspension for all wheels and disc brakes. It was also available as a kit. 65 were made from 1962 to '68.
One Diva GT won its class at the 1964 Nürburgring. In 1965 the firm was renamed: Diva Cars Ltd.

Brochures:
GT 10F Coupe, 1966, 2 pages, PB. DM 80
Valkyr GT, 1967, 1 page, PB. DM 60

The small Diva Prototype of John Delmar-Morgan and Mike Walton 1966, 1000 km Nürburgring

6 September 1964 - Nürburgring (D): Round 7, International Championship for Manufacturers
Peter Brayshaw/Tim Lalonde drove a Diva GT (class: Prototype GT 1000; car# 116), entered by Diva at the Nurbürgring in 1964, Sep. 6. They did not finish.
Neither did John Bloomfield/Donald Sim finish, driving in another Diva GT (car# 127, also entered by Diva) in class Prototype GT 1300.