Is there a difference between police interceptor and train.which is on rail years?

I know Ford can release a 2016 police interceptor in 2015, but is there a difference between that and trains?
a) yes
b) no

When you answer, can you give me an explanation?

Trains go on tracks, and are often called locomotives.

Car companies release the next years model in the fall of the previous year. The 2016 models come out in the fall of 2015. Why is that so hard for you to grasp? Do you feel like a time traveler?

I have seen dozens of questions from you, focused in the seller's description of police vehicles. None of them make sense. See a shrink

As you know the 2016 was scandalously, along with school busses, released in 2014.
While most trains are a lot older than your mental capacity.

Rail years?

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