If the CAN is configurable then you've got a wide choice of sensors you can add on. I've seen the Izze Racing system before, but not heard anything about them. They're not an established provider of this sort of system, and from what I can see, the system requires quite a bit of manual setup and it doesn't have any certifications.
If you only want tyre temperature, then something like https://www.texense.com/en/irn4c-infrared-tyre-temperature-sensor-72.html might be of use.
If you're after tyre pressure and internal tyre temperature, then something like https://www.bf1systems.com/product/irtptms/ this might be more suitable. The bf1 system is widely used in motorsport and is extremely well proven, providing all data in real time which would do what you want.