The 312 and the 316 were based on the 12C-37 which raced occasionally in the last year of the 750kg formula. These cars were noted for carrying their fuel in a saddle tank over the drivers legs. The Peter Hull/Roy Slater book on Alfas says that the 308C was similarly 12C-37 based but this was clearly not so. The 308C has a large fuel tank in the tail and looks completely different - like a larger version of the 1938 158 to my eyes.
At Pau in 1938 Nuvolari and Emilio Villoresi practiced in 308Cs but Nuvolari's caught fire causing the withdrawal of both 308Cs and Nuvolari's eventual departure from Alfa Romeo. Hull/Slater says that the fire was caused by a leak in the saddle tank, Lief Snellman's website says the same. That can't be the case if the car didn't have a saddle tank. Does anybody have any other information about the cause of the fire?
In 1948, Achille Varzi drove a 4.5-litre V12 Alfa in Argentina. This was said to be based on a pre-war Grand Prix car. Does anybody know which one? I thought is was the 12C-37/312/316 but it doesn't look like that. It looks to me as though the Varzi car carried its fuel in the tail. On the other hand its chassis plate says 12C/316!
Alfa Romeo Argentina by Chritian Bertschi and Estanislao Iacona contains a picture of a V12 Alfa without bodywork, said to be the Varzi car in Milan before it was sent to Argentina. It definitely doesn't have a scuttle tank. David Venables' First Among Champions also has a naked V12, said to be a 312 in spring 1938. I would say that they are the same car, and could even be the same occasion. There is no background visible in either picture but the ground is similarly paved. That isn't conclusive because I have seen other pictures of Alfas on similar ground; it could be the road outside the factory.
Any comments, additions or corrections would be welcome. I do know, by the way, that Simon Moore is working on a book which will probably answer all these questions and many others but I don't know when it's due..
Edited by Roger Clark, 08 July 2009 - 19:07.