The Locust is a Lotus/Caterham 7 replica, currently sold as the BWE Locust (although this is a JC Locust). There is some confusion between the Locust and the Locost (which is also a 7 replica), but the Locust predates the Locost somewhat.
This particular Locust was built in the early '90s by Kit Smithers and a friend of his, with the intention to make more of these. It was a demonstrator, but due to the available parts, it really should not have been. The SVA would've blocked this particular build at every opportunity! I like to think it as an example of how not to build a car!
I bought the car in October 2000, after it had been kept in a garage for 3 years.