They drive differently and honestly a lot of people that aren’t tracking these are going to like the low-end torque of the S. I personally don’t think the 4-cyl sounds nearly as bad as others, but it really doesn’t compare to GTS engine.
THAT SAID, the prior generation Caymans have a better sounding engine than any of the 718s, imo. Especially if this isn’t a daily driver, you may consider an older one to save money and get a 6cyl engine.
A GT3 touring just for the engine noise. Probably a 991 since I think it looks better than a 992.