Solved - NEH 2359: OSCA 1500 Barchetta Sport - 1953 with 1960s Fantuzzi bodywork

[Carnut]

What's this, by whom, from when - for 1 point?:

ANYONE FOUND GIVING ANSWERS GLEANED BY USING GOOGLE SEARCH BY IMAGE MAY BE BANNED FOR AN INDETERMINATE PERIOD!

[Carnut]

Easy Expert point..

[targhediferro]

OSCA MT4 AD2, 1955  I suppose

[dzima1985]

Jaguar XK120C Barou 1953?

[Carnut]

Jaguar XK120C Barou 1953?

Not that (which would be a repost..)

OSCA MT4 AD2, 1955  I suppose

It is an OSCA, but not an MT4 nor from 1955.
Locked for 24 hours for you to find which one and answer the remaining question.

[targhediferro]

At a deeper sight...The car is what is generally known as Osca 1500 Fantuzzi, 1953;
According to much more than one expert, it seems this car is a puzzle between an Osca Engine (MT4) and a Fiat 1100 E chassis, and there is no prove that it was really made by Fantuzzi.
I suppose it has no documents and no plate.

[Carnut]

At a deeper sight...The car is what is generally known as Osca 1500 Fantuzzi, 1953;
According to much more than one expert, it seems this car is a puzzle between an Osca Engine (MT4) and a Fiat 1100 E chassis, and there is no prove that it was really made by Fantuzzi.
I suppose it has no documents and no plate.

It is that car, yes.
But there is more known about it!
It's not based on a Fiat 1100 E chassis but that of another (1953) Fiat.
Which one? 
And when did it gain that Fantuzzi body?
Locked for taghediferro's reply, but I'll give you a nice colour photo of this beautiful car just to enjoy whilst looking!

[targhediferro]

As you'll be able to check, there are many opinion about the origin of this car:  Someone tells it has a 1100/103 chassis, others suppose it to be a 1100E or 1100B (with particular attention to front suspensions).
The year usually reported as the Fantuzzi body arrive, is 1962.
(I have this car in the box of the suspect-fake)

[Carnut]

As you'll be able to check, there are many opinion about the origin of this car:  Someone tells it has a 1100/103 chassis, others suppose it to be a 1100E or 1100B (with particular attention to front suspensions).
The year usually reported as the Fantuzzi body arrive, is 1962.
(I have this car in the box of the suspect-fake)

OK, let's called it Solved.
This is what the owner said when it was sold recently (put into my English..):

QUOTE
Fantastic OSCA Barchetta Sport.  Alloy body.  1953 with OSCA 1500cc engine.  New Engine 150 bhp. 4 speed gearbox.  built in Modena in the 60s by the Fantuzzi team for one of their mechanics.  Chassis Fiat 508 - 1953.  Drum brakes.  Car has been fully restored over a 3 year period.  Original wooden steering wheel fully restored.  Car in Italy and always has been.  Full history from the 1950s.
UNQUOTE