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#1 · (Edited)
** The latest compilation of the info and the chassisnumbers as of March 2024 can be found on page 25, in post #500 (and further). Here is the link to post #500. https://www.alfabb.com/threads/gtam-chassisnumbers.162337/page-25#post-8807697

Hello members,

In some of our threads here, we discussed the GTAm chassisnumbers that we know of from various sources and that could be genuime. I thought it was time to try and make a list. But first a definition of what a GTAm is.
The GTAm was an Alfa Romeo GTV that was converted by Autodelta to GTAm specification. The homologation papers specify what changes could be made.
Besides the type 1750 GTV USA (105.51) some type 1750 GTV EU (105.44) have been converted. Some type 2000 GTV's have also been known to be converted to GTAm specification. Difficulty is that the GTAm's never had a unique type- and chassisnumber. This is unlike the type GTA (105.32 LHD and 105.34 RHD) and type GTA 1300 Junior (105.59).

Then there are variants within the different types:
  • new cars from the production line converted to GTAm spec's by Autodelta as Autodelta works cars
  • new cars from the production line converted to GTAm spec's by Autodelta as Autodelta customer cars
  • existing cars converted to GTAm spec's by Autodelta as Autodelta customer cars
  • new or existing cars converted to GTAm spec's by other tuners/teams with Autodelta parts like the Balduzzi cars (Tony Adriaensens mentions this in his book)
  • new or existing bodyshells with or without a chassisnumber that were equipped with Autodelta parts (for example from wrecked cars)
  • other variants on this theme in various stages of tune

Besides that, there are a lot of replica's with various stages of tune with less or more original GTAm parts. And a lot of real GTAm's will have been updated during and after their racing life, engines and gearboxes swapped, were restored, etc ..... And some of these cars had great palmares while others were less fortunate.

Tabucchi in his first edition of 'Alfa Romeo GTA' from 1994 did list a number of GTAm's (105.51). Here are the chassisnumbers, first owners and dates:
1. 1530671 Autodelta 01-09-1969
2. 1530776 Autodelta 29-10-1969
3. 1530782 Jolly Club 31-12-1969 (Takis confirms car now in the Alfa Romeo Museo Storico collection, see post #34)
4. 1530849 Autodelta 27-01-1970
5. 1530879 Autodelta 08-01-1970
6. 1530896 Autodelta 28-01-1970
7. 1530938 Autodelta 26-01-1970 with licenseplate MI K91850
8. 1530952 Autodelta 26-01-1970 with licenseplate MI L27247
9. 1531034 Autodelta 11-02-1970 with licenseplate MI L26447
10. 1531039 Autodelta 11-02-1970
11. 1531042 Autodelta 16-02-1970
12. 1531231 Luigi Cecchini 26-05-1970 (Takis confirms car is now in Greece, see post #35)
13. 1532265 Autodelta 23-01-1971
14. 1532307 Autodelta 23-01-1971
15. 1532327 Autodelta 23-01-1971
16. 1533142 Autodelta 28-01-1972

He also mentioned two 105.44 types:
17. 1358476 Elaborazione Autodelta, Autodelta works engine
18. 1378479 Monzeglio Squadra Corse (Martinue confirms this car as genuine in post #40)

Mentioned by Don Best and others in the thread concerning GTAm prices were the 'Angola' GTAm's:
19. 1532345
20. 1532346

Fred della Noce noted that he used to own a Brasilian ex Jolly Club Hotel GTAm with chassisnumber now owned by Alcidis Diniz in Brasil. Look in this thread: GTA (1965-1975). We are talking about a 105.44:
21. 1382607

Here are more chassisnumbers, short discriptions and factory production dates (not the dates of sale to or transport to Autodelta). Source is Tony Adriaensens' book 'Alleggerita' published in 1994 by Corsa Research. If the number in front of the chassisnumber is an X, this chassis was also mentioned by Tabucchi.

X. 1530782 Autodelta works car No date
22. 1530834 Autodelta works car No date
23. 1530840 Raced by Alfa Romeo Benelux/Grafo Racing Team No date
24. 1530841 Raced by Hahn No date
25. 1530848 Previously owned and raced by Toine Hezemans No date
X. 1530849 Autodelta works car 25-01-1970
X. 1530938 Autodelta works car No date
X. 1530952 Autodelta works car No date
X. 1531039 Ex SOFAR France driven by Chasseuil & Houel No date
X. 1531042 Autodelta works car No date
26. 1531210 Raced by Alfa Romeo Benelux No date
27. 1531230 Autodelta works car 30-05-1970
X. 1531231 Autodelta works engine* No date
28. 1532166 Autodelta prepared for Scuderia Brescia Corse No date
X. 1533142 Autodelta works car No date
?. 1538476, not possible because chassisnumber is too high (?!): 1538476 should probably read 1358476

Then there is the car that was owned by Eiso Bergsma with chassisnumber:
29. 1530037 Prepared in 1974

The Italian Monzeglio 105.44 GTAm with chassisnumber:
?. 1357840 (questionmark?)

Martinue mentioned 105.44 chassisnumber:
30. 1357933

Don Best mentioned chassisnumbers:
?. 1530038 (typo for 1530938?, Martinue)
?. 1530145 (typo for 1532345?, Martinue)
?. 1530246 (typo for 1532346?, Martinue)
?. 1530787 (typo for 1530782?, Martinue)
?. 1532165 (typo for 1532166?, Martinue)

Bjorn Schmidt mentioned chassisnumber:
31. 1530974

Vince Sharp mentioned chassisnumber:
32. 1531068

Ecarrillo and others mentioned chassisnumber:
?. 1534912, not possible because chassisnumber is too high (?!) Should this read 1354912 and was it a typo? Why was chassis 1534912 mentioned in the auction data? What about the RHD?

RossoGTVforme mentioned:
33. 1530537 Autodelta prepared (works car?) No date (Sent to US), seen in Montery

So up to now, the sources speak of more than 30 GTAm's that could be genuine and a couple of chassisnumbers that pose questionmarks.

The following period licenseplates were found up to now:

Italy MI K91850 GTAm #?? Giro d'Italia 1973 Venturi - Civolani and #35 Silverstone 1973 Facetti (chassisnumber #1530938)
Italy MI K92422 GTAm #23 Brno 1971 Hezemans
Italy MI K9?291 GTAm #24 Brno 1971 Facetti
Italy MI L27247 GTAm #50 Spa 1973 Larini - Facetti (chassisnumber #1530952)
Italy MI L12787 GTAm #51 Spa 1973 Dini - Dona and #23 Zandvoort Dini - Dona
Italy MI L76850 GTAm #22 Zandvoort 1973 Deen - Zeccoli
Italy MI L47393 GTAm #46 Critérium des Cévennes 1970 Barailler-Fayel (4th) and #37 Silverstone 1973 Dona (chassisnumber #1531230?)
Italy MI L47392 GTAm #59 Tour de France 1970 Darniche-Demange (DNF) (chassisnumber #1531230?)
Italy MI L47391 GTAm #45 Critérium des Cévennes 1970 "Christine"-"Biche" (15th) Winner "Coupe des Dames" and #57 Tour de France 1970 Barailler-Fayel (DNF)
Italy MI L26447 GTAm #60 Tour de France 1970 Dieudonné-Curien (14th) (chassisnumber #1531034) entered by SOFAR
Italy MI L26448 GTAm #57 Tour de France 1971 Chasseuil-Baron (16th) entered by SOFAR
Italy MI K63991 GTAm #47 Critérium des Cévennes 1970 Consten-Todt (3th)
Italy MI K97829 GTAm #58 Tour de France 1970 Pianta-Alemani (7th)
Italy ?? ??????? GTAm #56 Tour de France 1970 Verrier-Vanson (SOFAR ??)
Germany MA HE 555 GTAm #189 Fassberg 1971 Ertl
Holland 93-42-MN GTAm Hezemans (#1530848)


Any additions or comments? You're welcome!

Ciao, Olaf
 
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#39 ·
FWIW, very commendable effort Olaf and others. At the same time, IMO you want to make sure that replicas are not reified as real cars on this thread. So the chassis # should be accompanied by a source listing and include period hx - that's really the only way to tell a real car, especially, as there is the issue of works cars (most of them) and a few privateer cars, some of them built elsewhere w/ the proper parts available from Autodelta.

Also, there are already a few # that have two cars sporting them ...

With GTAms being allowed to FIA race again in Historic, lots of replicas are being built, some of them very good w/ real parts, others looking a bit dubious. As far as their racing class is concerned, they are GTAms as long as they are built to the original homologated specs and they are allowed to run, as FIA no longer requires a period racing hx. I agree that the German/British one looks a bit questionable ....
 
#41 · (Edited)
FWIW, very commendable effort Olaf and others. At the same time, IMO you want to make sure that replicas are not reified as real cars on this thread. So the chassis # should be accompanied by a source listing and include period hx - that's really the only way to tell a real car, especially, as there is the issue of works cars (most of them) and a few privateer cars, some of them built elsewhere w/ the proper parts available from Autodelta.
Hello Alleggerita,

Thank you for your comment. And you are right. We want to make sure that all the chassisnumbers mentioned in this thread are 'the real thing'. That is why I will update the first post in this thread every time when new data and sources are mentioned. So please supply information if you think you can add something to the known data. It will help us differentiate between GTAm's that could be genuine and chassisnumbers that pose questionmarks.

Ciao! Olaf
 
#40 ·
It seems that the "german/english" GTAm is the real Monzeglio one. It was raced in that Euro1750 configuration in the early 1970s and has papers. Btw it was first purchased by a portuguese (Cruz) and restored and maintained by a german (Furiani), raced by the portuguese, later sold via a belgian (MRoks) to an Englishman (Fitzsimons), who let the german codrive and do the work on it.
 
#97 · (Edited)
Hello Martinue & members,

Here is the original Monzeglio GTAm in the 1971 4 hours of Monza. Look at the front of this GTAm. It definitely has the 1750/2000 rectangular front indicator lights instead of the round indicator lights most GTAm's had back than.
By the way; source of the picture is the magazine 'Motorsports' who brought out a special about track tests last month. Very entertaining reading!!

Ciao, Olaf
 

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#51 ·
The following pictures are from a photographic archive I keep, the chassis numbers are unknown to me, Olaf has put a great effort on finding genuine GTAms chassis numbers so we can add a picture on each chassis number or we will be able to tell if we are dealing with a genuine or a replica.
Takis.
 

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#54 · (Edited)
Hello Takis,

Thank you for the pictures!
When I am at home in two days, I will check the pictures with the data of the GTAm's in my database.
I did check the dutch Ministry of Transport and learned something about the two cars with a Dutch licenseplate. They are 73-34-XT (listed as a 2000 GTV that was imported and sold to the first owner on the 5th of June 1973) and 77-19-PE (listed as a 1750 GTV that was imported and sold to the first owner on the 6th of October 1970).
The red car wit the 'Alfa Romeo Van Asselt' add on the left front fender is a Dutch car also. This picture was taken in 2003 at the Zandvoort circuit during 'Spettacolo Sportivo', the Alfa Romeo gathering of the Dutch Alfa Romeo Owners Club (www.alfaclub.nl).

Ciao, Olaf
 
#57 ·
Hello Han,

This 'post' is a little more focussed - i.e. to those GTAm's raced in Southern Africa.

Find attached some photographs of a front suspension from a 'South African' GTAm apparaently sold to a person in the Netherlands. Do you know who they were sold to and on which car (if any) these 'bits' ended up on?
 

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#58 ·
Yes I know those parts, those picture were taken by me, I owned them at one time and they are now owend by someone who is going to use them on a replica Gtam.

I was told the parts were off a gta 1300 but that makes no differance because both used the same.


Han
 
#60 · (Edited)
Hello Rik,

Good to hear from you! So your car was 73-34-XT. Can you tell us a little bit more about it? You say it had real GTAm fenders, how can we tell real from imitation or aftermarket in your opinion? Is it the material only or also other things?

And can you tell us more about the 'Van Asselt' replica? The same goes for the 77-19-PE/Olaf Hoel car?

Ciao, Olaf
 
#61 ·
real fenders. In one of the front ones was a slip of paper with the trademark Delta sign laminated in it.
The van Asselt car used to be Bob and Harmens car, with lots of real stuff on it, but replica. Don't know if they still have it.
The other, I have spoken to the owner on one club day, back then. Don't recall. Nice car.
Mine was sold because thoroughly rotten, but it was all Squadra Bianca underneath, so had all the right goodies and was very fast on zandvoort. I did a 2.20 lap of the long track, believe it or not, on '77 vintage Goodyears, that sat on a set of wide Montreal Wolfrace wheels which had been lying in stock for 25 years.
Huge fun, the tires were fine except old, so it was like driving on plastic instead of rubber, it drifted so easily. Had totally great machanical grip, but none whatsoever on the tires. So totally controllable. With the right rear axle I did 240 Kph on the highway. With the short axle I did 100kph to 200 kph in ten seconds flat.
In fifth, without downchanging......
It was terrific fun. But very very tired after three years of trackdays , races AND doubling as a daily driver!
 
#62 · (Edited)
Hello members,

Here are some pictures of the Hezemans SRT (Stichts Racing Team) GTAm #1530848 which is still in Holland and with the same owner since the 70's.
The source of the pictures is the internet. I couldn't recall the site or exact source.

Ciao, Olaf
 

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