What car is thought of?

No.

 

ford

 

No.

 

Was it linked to Chrysler Corp?

 

Nope.
(Hint: The company was linked to a company based in Chicago)

 

Is it an International?

 

Nope.
(Hint: It was used by a cab company in that city)

 

Is it a Checker Marathon?

 

It is a Checker, but not a Marathon. It's a 'almost-forgotten' model.

 

Is it an A-series?

 

Nope.
(Last hint: It's LWB)

 

Is it the Aerobus?

 

Nope.
(Actual last hint: Model name starts with a S)

 

Is it the Checker Superba?

 

Nope, but it does start with Super. (very close)

 

Anybody still willing to try?

 

can u give me one more hint

 

I won't be giving anymore hints.

 

is it a concept

 

No.