When it comes to electronics, I loath heat, so I may be biased toward lower temps. Typically, electronics perform better, are more reliable and will last longer, when lower temps are maintained.
Yours will exist in a sometimes very hot environment. In the summers cabin heat can climb pretty high. In the winters, the instrument cluster’s temp may be elevated by the climate system’s plumbing.
Once the CPU reaches a certain temp, it will begin to throttle.
Much has been written on the VIM’s thermals, for instance see here(a long read, but informative).
The A311D is a powerful SoC, even when throttling, performance will probably be more than adequate for your use case.