Hi!
The car in a first post and on the above pictures is called JK Sport. It was created in 1949 by Julius Kubinsky from Czechoslovakia - the designer of Mono JK, JK 2500 Tatra and other cars. Three cars with a name JK Sport were made - one was a roadster with Alfa Romeo engine, two others were BMW powered coupes (326 and 328 engines).
You can compare it to the car shown here:
Automuzeum
And since it is my very first post at AlfaBB I'd like to say that I like this forum a lot thanks to some very rare materials which can be found here.
Regards,
Alexander.