Prototypes cars are always difficult to identify because of their hectic lives. Their lives pass from the tumult of media to the discretion of the development phases and at last, often ends inglorious against a crash test wall. However, a part of the Campogalliano's prototypes have survived.
Two distinct series of cars were used for developping the EB110. The first one called 110, designed by M. Gandini, was built on an aluminium chassis and 5 were made, numbered from A1 (A for aluminium chassis) to A5, in 1990 and 1991. The first one (A1) was dismantled after being used for testing, and the chassis was re-used for a styling study. The 4 aluminium cars left were re-numbered from 39001 to 39004. All of them have survived.

39000, the very first powered aluminium chassis. New pictures of the construction of the A1 car.
Car (clic for description)
Chassis number
Engine number
Country of destination
Last known location
Year
110-0000
035-0000
Factory car
(A1)
Netherlands
1990
ZA9AB01E0 MCD 39001
-
Factory car
(A2)
Switzerland
1990
ZA9AB01E0 MCD 39002
-
Factory car
(A3)
Switzerland
1991
ZA9AB01E0 MCD 39003
-
Factory car
(A4)
Switzerland
1991
ZA9AB01E0 MCD 39004
-
Factory car
(A5)
Switzerland
1991

In mid 1991, a complete re study of the car, now called EB110, was done by Materazzi and Benedini, both in technical or aesthetic terms. The Benedini prototypes were numbered from C6 (C for carbon chassis) to C16 and were built from mid 1991 to late 1992. The exact number of GT prototypes is difficult to know because some of them were destructed for crash tests or refurbish and then sold as production models. Around 10 EB110 prototype cars were built before the GT production model. An epowood design study with the almost definitive EB110 shape was built on the aluminium chassis number 6.

39012, the C13 car is now in Chicago, USA (2015, Oct 25).

Car (clic for description)
Chassis number
Engine number
Country of destination
Last known location
Year
None (A6)
None
Design study
Netherlands
1991
ZA9AB01E0 MCD 39005
-
Factory car
(C6)
Italy
1991
ZA9AB01E0 MCD 39006
026
Factory car
(C7)
Mexico
1991
ZA9AB01E0 NCD 39007
-
Factory car
(C8)
Germany
1992
ZA9AB01E0 NCD 39008
-
Factory car
(C9)
Crash Test
1992
ZA9AB01E0 NCD 39009
-
Factory car
(C10)
Crash Test
1992
ZA9AB01E0 NCD 39010
-
Factory car
(C11)
Crash Test
1992
ZA9AB01E0 NCD 39011
-
Factory car
(C12)
Crash Test
1992
ZA9AB01E0 NCD 39012
041
Factory car
(C13)
USA
1992
ZA9AB01E0 NCD 39013
-
Factory car
(C14)
Crash test
1992
ZA9AB01E0 NCD 39014
-
Nude chassis
(C15)
Unknown
1992
ZA9AB01E0 NCD 39015
-
Factory car
(C16)
Crash Test
1992

The Supersport evolution (SS) was first developped on GT chassis (the first one is 39008) but the early story of this model remains still unclear. Some SS chassis numbers have been recorded but very few informations are available on these cars, wich may never have been made. It's possible that other SS chassis was never numbered and others were cloned. It will be extremely difficult to shed light on this phase of development. An epowood design study quite close to the Supersport EB110 shape was built on the aluminium chassis number 7.
SS39005, a Supersport prototype used for official pictures and exhibition in International Motorshow (2017, Jan 28)

Car (clic for description)
Chassis number
Engine number
Country of destination
Last known location
Year
None (A7)
None
Design study
Netherlands
1992
ZA9AB02X0 PCD 39004
042
Factory car
Japan
1993
ZA9BB02E0 PCD 39005
-
Factory car
Unknown
1993
ZA9BB02E0 PCD 39006
026
Factory car
UK
1993
ZA9BB02E0 PCD 39007
-
Factory car
Austria
1993
ZA9BB02E0 PCD 39008
-
Rolling Chassis
Germany
1993
stamped thereafter
ZA9AB01S0 PCD 39012
128
Factory car
Switzerland
1993
ZA9AB01E0PCD39055 053 Factory car UK 1994

At last, I can list here the chassis numbers dedicated to the Bugatti sedan car, the EB112, that never reached production step. After the epowood design study car, the first motorized chassis was the famous burgundy red prototype from Giugiaro. Then, another Epowood model was made, with a modification of the rear of the car, with different lights localized on the body instead on the bumper. At last, 2 prototype models (a dark anthracite and a black ones) were finished after the bankruptcy, probably at the Monaco Racing Team.
39003, the last EB112 produced, bought by a french owner (Sept. 01, 2015).
Car (clic for description)
Chassis number
Engine number
Country of destination
Last known location
Year
None
None
Design Study
Italy
1993
ZA9CC030EPCD39001
-
Factory car
Italy
1993
None
None
Design Study
Italy
1994
ZA9CC030ERCD39002
-
Switzerland
Switzerland
1994
ZA9CC030ERCD39003
0007
Monaco
France
1994