Sure looks like an Avante, but it isn't one
How about Alto by Peerhouse Cars / Cardo Engineering?
Yes, it is the Alto, a clone of the Avante but featuring a mid-engined Alfa chassis from Sandwood Automotive and offered by Peerhouse Cars based in Surrey in 1983. There was also a version based on a VW Beetle floorpan with a Golf engine. Owing to the hefty price compared to the Avante it was not a success and faded away in 1984 after a few cars were completed.
A revival was undertaken in 1988 by Cardo Engineering but that also failed.
Another point for you Arunas.