What is tunerevo all about exactly?

My boyfriend went to tunerevo in Puerto Rico this last summer and I was happy for him because he loves cars.
I know nothing about car culture and the events and I would like to know more but when I was looking at the videos on YouTube it looked like it was also about the models?
I’m a very conservative person but I try to stay open minded and not let jealousy get the better of me.
But the videos I saw made me question if it’s okay if a man goes to an event like this without their significant other or is it disrespectful?

What is tunerevo all about exactly?
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