I may come off dumb as a rock here but...

The wife's car had a slow puncture today, so I thought I'd check the spare on mine.

It has no spare, it doesn't have run flats but it does have a little compressor in the back, which seems about as useful as tits on a bull if there's a major puncture.

Did tires get bullet proof all of a sudden, or is this a pro exercise thing?

This seems odd to me, anyone know why? Surely can't just be cost savings can it?