A one-off? Could be, but in fact I'm convinced it's a Reeves Matrix, built by Reeves Engineering Development in Newark in the mid- to late 1980s. I'm not totally sure how serious Reeves was about the Matrix as it was a truly weird contraption with motorbike steering combined to Mini power and one of the rear wheels in an off-set position. It was marketed, though, and officially unveiled at the 1985 Alternative and Kit Car Show of which I have a picture. The prototype shown on that looks to be different from the one in Canterbury. It has a different engine cover, different headlights and different sides. However, it clearly is the same basic design with that very unusual off-set right hand rear wheel.
Anyway: I'd never have believed to come across a survivor, so the eBay advert is the surprise of the week. Let me know if you buy it! Oh, and thanks everyone for letting me know.
Reeves Matrix at the 1985 Alternative and Kit Car show. Where they ever serious?
Picture Jeroen Booij archive
And a Matrix in Kent. Is it the same vehicle that's been modified or a second one?
Picture courtesy ebay.co.uk