i have the XK Convertible, and with a space saver.
It's always bothered me that if I have a flat, I would struggle to get the damaged tyre into the car to take it to repair.
Both front and back wheels are wider that the space under the boot floor where the space saver spare lives. So if I have to swap out a puncture, I wouldn't have anywhere for the damaged wheel to go. This is a really problem as I am about to start a 2 week road trip, and the car is fully loaded. That being the case, I have decided to rely on the compressor and rubber solution for a temporary fix, and call on the RAC if it is anything bigger