As an auto technician who works on Swedish cars, and having seen the differences in simple parts, I wouldn't at all be surprised if there were many different designers in each little section and they would all report to a chief designer.
My personal favourite part in a SAAB is the pivot assembly that the handbrake lever bolts onto. An aluminium marvel that aesthetically would put any RC car bulkhead to shame and obviously took a significant amount of time to design. This is something that an owner will almost never see as it's covered by the centre console. It would not look out of place is a race car.
The lever on the other hand is three bits of cheap plastic with a cable running up the middle. When you press the button on the end, instead on the cable pushing down the handle, it twists, and spreads the two plastic halves of the handle apart instead of actually releasing the handbrake.
It's pretty obvious from looking at the two different parts that there were different engineers involved and I'm sure they both reported to a chief designer of some sort who then reported to the head chief designer.
The cup holders in the 9-3 are quite an impressive piece of work too.
Of course, SAAB never made an LMP car for any of the body manufacturers to copy and then be denied use of halfway through a season so I'll leave this thread to get back on topic.
I'm not a grown man playing with toys. I'm a hobbyist.