Solved -PJ562- Forster Six 1920

[Paul Jaray]

Here you are a new WWB1 puzzle.
As usual the car is not that obscure but not too easy.
The following only rule is also a big clue:

I won't reveal the nationality of this maker, so you can't ask for it

[João]

Circa 1919 Phianna Touring Car?

[Paul Jaray]

Not that.

[ropat53]

I'm sure it's not as easy as one of the Sizaire's, but I have to ask, Sizaire-Berwick?

[Paul Jaray]

Not Sizaire-Berwick.

[ropat53]

Belga-Rise?

[Paul Jaray]

Not Belga-Rise.

[Arunas]

European?

[Paul Jaray]

The only rule is that I can't reveal the nationality.
Your guess is very smart, since you are not asking for it.
I should not answer but If you get the only clue I tried to give, you can assume it's not from Europe. 
I won't answer to other geographical questions.

[Wendax]

Is it the Australian Six?

[Paul Jaray]

Not that but it's a six and the year is about right.

[pnegyesi]

Fleetwood-Knight?

[Paul Jaray]

Not that...

[pnegyesi]

Gray-Dort?

[Paul Jaray]

..not that...

[pnegyesi]

McLaughlin?

[Wendax]

London Six?

[Paul Jaray]

...not those...

[Paul Jaray]

Australian Six
Belga-Rise
Fleetwood-Knight
Gray-Dort
London Six
McLaughlin
Phianna
Sizaire-Berwick

[pnegyesi]

Roberts Six?

[Wendax]

Birmingham Flexible Axle Six?

[Paul Jaray]

Australian Six
Belga-Rise
Birmingham
Fleetwood-Knight
Gray-Dort
London Six
McLaughlin
Phianna
Roberts Six
Sizaire-Berwick

[Wendax]

Parker?

[4popoid]

Moon (perhaps a 6-50) from about 1924?

[Paul Jaray]

Australian Six
Belga-Rise
Birmingham
Fleetwood-Knight
Gray-Dort
London Six
McLaughlin
Moon
Parker
Phianna
Roberts Six
Sizaire-Berwick