I read somewhere in the forum that the JCW suspension is stiffer and lower. It may be stiffer but looking at models side by side it does not look any lower. Does anyone know what the actual differences are?

 

Jcw suspension is the same sport suspension on the regular S. If you're comparing a jcw to an All4 S with sports suspension, they will be identical.

Sport suspension sits a few cm lower than standard suspension.

Also, the all4 wil have more weight in the rear, so fwd models sit different (slightly higher in the rear) than awd/jcw models.

 

Here's an S All4 with Sport suspension.