The boot is very large and deep as there is no spare.
Even with the roof down I've had a good size cool box, 2 carrier bags, 2 fold up chairs and a couple of blankets in the boot when going to the beach - my brothers 911 convertible had no room for chairs or an ice box...
The later cars have had revisions to the suspension and don't have run flats. I would test it for yourself and make your own mind up.
For me its the effortless silent drive, huge mid range torque, class interior, build quality and rarity that makes it a winner.
You really dont need to thrash this car as you go alot quicker than you realise anyway...
Paul