Is there no can of gunk and a compressor like other cars without a spare.
The only problem with not having a spare in the car is if you get a puncture in a remote location at night you face a pretty long wait to be relayed and then provided with a loan vehicle etc.
With a spare RAC could fit it and you could take the punctured wheel to quick fit when it suits you.
poor service and penny pinching by Citroen in my opinion.