SOLVED (at last!): Djetset #250 - Vauxhall Calypso BTV proposal

[Djetset]

Fellow AutoPuzzlers, as today is the first anniversary since I discovered AutoPuzzles, I am celebrating with what I believe to be one of my most difficult puzzles yet.  

So, for a point, can you please give me the make and full name of this car, and sorry for the poor quality photograph.

[Djetset]

Up to the Experts...

[Djetset]

Can the Pros solved this mystery?

[Otto Puzzell]

Looks like the offspring of a golf cart and a Panther 6

[Djetset]

Sure does, but it's neither of those, although there is an obscure link with the Panther!! ???

[Allemano]

Does it have four wheels or only two rollers? ;D

[Djetset]

See what you mean, but it does have four wheels.

[Oguerrerob]

Autobianchi A 112 Giovani (Pininfarina), 1973

[Djetset]

No, not that, but thanks for bring this puzzle back to life before it slides into the Black Hole.

[DeAutogids.nl]

Is it made by a design house or a private person?

[Djetset]

Neither, as it was designed in-house by a vehicle producer.

[Allemano]

Okay let's start to crack that! ;) From the UK?

[Djetset]

Yes!  ;D

[Allemano]

Okay....thanks! ;D

[DeAutogids.nl]

Mini-based?

[guido66]

Neither, as it was designed in-house by a vehicle producer.

So, I guess by vehicle you mean something a bit different from cars?

[Djetset]

No, not Mini-based, but it is from a manufacturer that builds cars and vans, etc.

[pnegyesi]

Do you mean a company which created kits or fully-built turnkey vehicles?

[DeAutogids.nl]

Morris?

[Arunas]

one-off? Never intended for production?

[Djetset]

Three questions at once so three answers;

The company creates turn-key cars; it is not a Morris, and it is a one-off prototype design study for a potential production car that never happened.

Hope this all helps to narrow the correct solution down.

[pnegyesi]

Jaguar?

[Allemano]

Vauxhall made some experimental designs in earlier times.

[Djetset]

Not Jaguar, but Allemano is really on to something with Vauxhall, so locked to you for 24 hours for a model/project name.

[Allemano]

The Equus for instance was based on a Panther Lima chassis...
Was is built under Wayne Cherry's lead?