How are refugees from poor countries able to afford nice cars and things already?

There have been a lot of refugees being moved into my city and a good amount are Asians. They've only been here for a few years and they already have newer iphones, tablets, luxury/more expensive cars (some have Mercedes and audis). They all came from poor areas in their previous country and it seems like the ones without kids have more than the ones with kids. Does the government give them money or something? I'm sure they've given them furniture and probably something like food stamps or whatever but the US barely wants to help the people already living here, especially the homeless population.
How are refugees from poor countries able to afford nice cars and things already?
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