There are so many Porche models it'll make your head spin. I had to sorta take a step back and jot down "must haves".
600ish HP
All Wheel Drive
Nice interior
That helped frame up the 911 turbo for me. I drove a GT4 (I think) at a track event and it was NA, handled like a go cart, and sounded amazing, but had nylon straps for door handles etc. I get saving weight but c'mon lol.
This is the breakdown
Gt anything = race car/track car
Anything else = street car
Turbo anything is the fastest trim
911 = flagship model
718 = mini me 911 that normal people can push to it's limits
If that's too complex here's it is simpler.
911 turbo = car you want for the streets
911 gt = car you want for the race track or to flex
718 gt = car you can actually use at the track wthout being a pro driver.