The part comes in a 48-pin LQFP package for surface-mount assembly.
That means STMicroelectronics is not actively encouraging new designs to start with it, though it remains available for existing production programs through the independent distribution channel. For a new design, you will want to evaluate the official successor or a pin-compatible alternative within the STM8A family.
Memory and peripheral fit for body/lighting modules
The CAN interface (2.0B) and LIN controller cover the two dominant automotive buses, so a single part can serve as the gateway between a CAN backbone and LIN sub-nodes.
Package and temperature — can I swap it on site?
The 48-pin LQFP package is a common footprint, but it is not socketed — you will need a hot-air station or a reflow oven to replace it. The -40°C to 150°C rating means it lives under-hood or on an engine-mounted ECU without derating.