2-seater, tourer, various saloons.
New designation relates to less inspired 1525cc four-cylinder stablemate, but this one, as before, shares chassis and bodies with the Sixteen. All now with wire wheels and wing-mounted side-lamps, synchromesh from 1934, but still Autovacs and magnetos, though late 1935 cars have coils. No open cars after '34, and '35 catalogue shows leftover '34-styling. A few, however, made with 1935-type 16/18 saloon coachwork and grilles.
- 1861cc (S4 SV)
- Front engine, rear-wheel drive
- Production dates:
- 1933 to 1935
- Number produced: