Experimental Car indicators, lights and brake lights help

So I was making a Astra F and I don't know how to make the indicators, lights and brake lights, so I need help! Thank you.

 

Make them as a mesh or texture?

 

are you going to make a thread for it?

 

Please no hate! That Astra is a covet meshslap.
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I tried, and I can't get them working