Yes, standard fitment one on my 997, flags up a warning with a couple of psi drop - before you've driven on a flat and crashed or ruined the tyre. Gives you a bit of a chance to use the tyre goo and pump.
I know what you mean but .....It's warm and dry here, and it will be used (sparingly); I hate garage queens.
off topic; woo hoo 959 (posts) - significant number
Bought it from Carl Fitchet (TR Traders) near Manchester - lucky hole with the weather 3 weeks back when fetching it home!
can you pm me the details of your specialist (in case) - shouldn't need much as it's like new!
Happy as can be with my Miltek (cat back): well made, not too loud - must be six years now and thus six there and back trips to blighty with no earplugs needed (a mate here has a 192 - way too boomy).