Camera focus on vehicle

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Hi all, do you know if there is a way or maybe a mod that allows you to focus your main view on a vehicle so that it automatically follows it?
I downloaded a camera addon (xi dragon or something like that) but I din't find anything to follow my vehicle..

 

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You can't follow a vehicle in the sense that the camera would stay focused on it, but clicking on the viewport at the lower right centers the view on whatever is selected.

 

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I know it's my computer's fault, but doing the above really slows down gameplay for me. I have had to turn this feature off completely to get the game to run at a decent pace

Would be cool if the whole screen could follow select vehicles on their route though, as the op suggested.