The last updated Model Register was published in 2015, Bulletins 552-554, and available separately from the AOC. This is an extract from the 1996 Model Register:
Click on any photo in the following gallery of some of the 351 SA Speed models…..
Where is 10180 now?
10152 Speed 20 SA OJ 8431
For details of a current restoration click RESTORATION STORIES
The later models of the Speed 20, types SB SC and SD have their own page. click Speed 20 SB
The 3½ Litre or Model SA25.63 has its own page, click here The 3½ litre introduced at the 1935 Motor Show for the 1936 season.
The Speed 25 has its own page, click on Speed 25