Solved -PJ586- You were ready for that!

[Paul Jaray]

3728: MODEL SIX C-60 SEDAN 1922
5714: ROCSTA 4WD 1994
8387: COBRA 427 1985

3728: American Balanced - The American was an American automobile, built in Plainfield, New Jersey, manufactured from 1917 to 1924. The company also used names American Balanced Six or American Six, "Balanced" referred to its chassis, not the engine. It was an assembled car, one of many built in its time, and it used components from several manufacturers like Borg & Beck for clutch, Warner transmission, Stromberg carburetor and Rutenber engines. I can't find a picture of a 1922, but here's a '21.

3728: MODEL SIX C-60 SEDAN 1922
5714: ROCSTA 4WD 1994
8387: COBRA 427 1985

5714: The Asia Rocsta is a four-wheel drive off-road vehicle built by Asia Motors Corporation in South Korea.
The Rocsta is derived from the Korean army's 4WD vehicle, also developed by Asia Motors. Because this model was cheaper than competing 4WD vehicles, it contributed to the increase in popularity of offroad racing in Korea.
Asia Motors launched the Rocsta in 1990, and retired it in 1997. From 1998, the Rocsta's replacement, the Asia Retona, was sold under the Kia badge.

UK sales of the Rocsta ran from 1994–1997, which included both 1.8 litre petrol and 2.2 litre diesel models. Both could be purchased with either a hard or soft-top. Both models were distributed by Kia Motors and used Kia copies of standard Mazda engines, with five-speed manual transmission.

Yes x 2!
+100

[Paul Jaray]

3728: MODEL SIX C-60 SEDAN 1922
5714: ROCSTA 4WD 1994
8387: COBRA 427 1985

8387: ERA Replica Automobiles manufactures the 427 Cobra replica in New Britain, Connecticut. "E.R.A. began in 1968, doing restorations of Porsches, BMW's and several British cars. In the first year, we fixed a totalled 289 Cobra (bought for only $1500 at the time by our current general manager, Pete Portante.  The car was sold about 8 years later - before the prices went crazy, of course.) and a Fiberfab kit car, among other projects.  In 1981, we started on our 427 replica. By 1985, all our restoration work ceased - we were just too busy doing our 427.  So far, we've delivered over 800 kits to 30+ states and a half-dozen countries."

Not ERA.

[Paul Jaray]

My trio (still looking for volume manufacturers)

3179
3289
5713

No rules here, you can play as you like, it's just for fun now  .
3179: RUNABOUT 1903
3289: GTA TURBO EUROPA CUP 1985
5713: ROCSTA 1994

[Wendax]

Very good!
+50
5219: 1st useless clue: just a production car, not a coachbuilt one, a racer, a replica etc.
80405: 1st useless clue: it's British

You can ask another number in order to have always 3 active numbers, if you like to.

Two more (hopefully more useful) clues, please.
And number 2209, please.

[D-type]

My trio (still looking for volume manufacturers)

3179
3289
5713

No rules here, you can play as you like, it's just for fun now  .
3179: RUNABOUT 1903
3289: GTA TURBO EUROPA CUP 1985
5713: ROCSTA 1994

I've obviously missed something here.

I was sure these would be

3179: Chevrolet
3289: Citroen
5713: Fiat (Italy)

So I'll have to ask for a clue for each of them please.

[Paul Jaray]

Very good!
+50
5219: 1st useless clue: just a production car, not a coachbuilt one, a racer, a replica etc.
80405: 1st useless clue: it's British

You can ask another number in order to have always 3 active numbers, if you like to.

Two more (hopefully more useful) clues, please.
And number 2209, please.

I can give you two less useless ones...(but if you read between the lines there was a subtle clue in my previous ...clues).
5219: 2nd less useless clue: 4 cilinders, 1094cc.
80405: usually Ford powered.
2209: GIULIETTA BERLINA ZAGATO 1958

[Paul Jaray]

My trio (still looking for volume manufacturers)

3179
3289
5713

No rules here, you can play as you like, it's just for fun now  .
3179: RUNABOUT 1903
3289: GTA TURBO EUROPA CUP 1985
5713: ROCSTA 1994

I've obviously missed something here.

I was sure these would be

3179: Chevrolet
3289: Citroen
5713: Fiat (Italy)

So I'll have to ask for a clue for each of them please.

it's adifferent game now, you can pick numbers between 100 and 103200 and those are models...you have to find the makers!
I've written few lines about in page 1,  2nd post.
Wanna try again without clues now?

[Wendax]

2209: GIULIETTA BERLINA ZAGATO 1958

I have that distant feeling that the manufacturer might be an Italian company by the name of, er....  Alfa Romeo?

[Paul Jaray]

2209: GIULIETTA BERLINA ZAGATO 1958

I have that distant feeling that the manufacturer might be an Italian company by the name of, er....  Alfa Romeo?

And you'd be right! 

[Wendax]

80405 should be a Quantum.

[Paul Jaray]

Now, considering that there are no rules but I can change my mind, you can always pick numbers in sequence but if you pick a maker already discovered, you'll get 5 and not 50. I will apply this rule from now on. 

[Wendax]

5219 is an Ariel.

[Paul Jaray]

80405 should be a Quantum.

Almost there...
The subtle clue was that I couldn't say it was a kit car, because that was a very useful clue!
It's just a matter of numbers, now 

[Paul Jaray]

5219 is an Ariel.

Now, that's impressive...but again it's a matter of numbers, now.
Almost there.

[Wendax]

I fear I don't understand what you mean by "almost there" and "it's a matter of numbers now".

Do you need the full name of the manufacturer like "Quantum Sports Cars" and "Ariel Motors Ltd"?

[Paul Jaray]

I fear I don't understand what you mean by "almost there" and "it's a matter of numbers now".

Do you need the full name of the manufacturer like "Quantum Sports Cars" and "Ariel Motors Ltd"?

it's the opposite of the previous game where a Bugatti (1) was the builder of the type 57.
Now if you pick a TYPE 57, the answer will be Bugatti (1)

[Wendax]

Aaaaah! 
I go for Ariel(1) and Quantum(2).

[Paul Jaray]

Aaaaah! 
I go for Ariel(1) and Quantum(2).

+100

[D-type]

My trio (still looking for volume manufacturers)

3179
3289
5713

No rules here, you can play as you like, it's just for fun now  .
3179: RUNABOUT 1903
3289: GTA TURBO EUROPA CUP 1985
5713: ROCSTA 1994

I've obviously missed something here.

I was sure these would be

3179: Chevrolet
3289: Citroen
5713: Fiat (Italy)

So I'll have to ask for a clue for each of them please.

it's adifferent game now, you can pick numbers between 100 and 103200 and those are models...you have to find the makers!
I've written few lines about in page 1,  2nd post.
Wanna try again without clues now?

I think I get the idea, are they

Ajax Runabout
Alfa Romeo GTA Turbo Europa Cup
Asia Rocsta

[pguillem]

1048: Six 1927
10048: ARNAGE GREEN LABEL 2000
100048: 2HP MOTOR ROAD WAGON 1895

1048: there are different Sixes from 1927.  May I have a hint ?
10048: the Bentley BMW V8 Arnage was renamed the Arnage Green Label for the 2000 model year. In addition, from 2000-2001, a special edition "Birkin" was produced
100048: is it a Duryea ?

[Wendax]

I carry on with the numbers 7038, 40123 and 102013.

[Otto Puzzell]

Not ERA.

Clue, please?

[Paul Jaray]

My trio (still looking for volume manufacturers)

3179
3289
5713

No rules here, you can play as you like, it's just for fun now  .
3179: RUNABOUT 1903
3289: GTA TURBO EUROPA CUP 1985
5713: ROCSTA 1994

I've obviously missed something here.

I was sure these would be

3179: Chevrolet
3289: Citroen
5713: Fiat (Italy)

So I'll have to ask for a clue for each of them please.

it's adifferent game now, you can pick numbers between 100 and 103200 and those are models...you have to find the makers!
I've written few lines about in page 1,  2nd post.
Wanna try again without clues now?

I think I get the idea, are they

Ajax Runabout
Alfa Romeo GTA Turbo Europa Cup
Asia Rocsta

Not Ajax
Not Alfa Romeo 
Yes! +50

[Paul Jaray]

1048: Six 1927
10048: ARNAGE GREEN LABEL 2000
100048: 2HP MOTOR ROAD WAGON 1895

1048: there are different Sixes from 1927.  May I have a hint ?
10048: the Bentley BMW V8 Arnage was renamed the Arnage Green Label for the 2000 model year. In addition, from 2000-2001, a special edition "Birkin" was produced
100048: is it a Duryea ?

1048: the most useless clue can be this: active from 1923 to 1930 circa.
10048: Yes! +50
100048: Not a Dureya (list arrives till 103300  )

[Paul Jaray]

I carry on with the numbers 7038, 40123 and 102013.

7038:MODEL 50 LIMOUSINE 60 HP 1909
40123:HQ 2006
102013:7 1\2 HP 1902

(Note that years may always be inaccurate)