That dash has an excessive amount of screens just begging for your attention, not sure how you could train yourself to keep your eyes on the road. I'm not sure you could even see the road at night if all those screens were on.
The tiny aero benefit from the side view cameras won't warrant the future cost of replacement for any of the the parts, or the extra screens inside. And if the cameras are anything like my rear camera on my truck the night view will be terrible
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