Can we use a predictive model of a device to another device of similar specification?
The answer to your question is yes, essentially while building a model what we are doing in reality is devising a mathematical function of a physical object (here car). So essentially what we are building is a mathematical model of a car.

What you should be aware of is ?
1. Say for e.g. if you are building a model for a car A and Car B, and if car A is a gasoline(internal combustion car) and car B is an electric car, then things become tricky if you want to build a mathematical function of internals of a car.
2. This does not affect if the model does not consider the internals of the car meaning the outcome (prediction) is not dependent on the internals of the car, which may not be the case always.

but in general you can use the model, it is always preferable to do a validation on the new dataset.