All I am saying is you need 2.5 MW to melt an aluminum wheel in one second, without any losses generating the beam. Now that I have read a little more, I now believe you will need about 5MW to generate the beam. If all four wheels end up melted it means you had to spend 4 seconds on that car. If you think all four wheels can be melted at the same time then you need many times more than the 5 MW generator. A 2.5 MW generator weighs 50 tons.
It is possible that along with DEWs the military also has miniaturized nuclear generators. If true, that's great because from here on we will win every encounter with a enemy tank, plane or ship. Alternatively if they developed them just to kill civilians, in which case we'll post a new thread to discuss.
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So far, as far as I know nobody but you has said anything about how long it took to melt the wheel.
I don’t tangle with other people’s assumptions.