Saturation and passes for vivid colors for vehicle wrapping.

Hello guys, I am using a HP latex 370 series printer and printing on 3M IJ 180c. I am also using the scotchcal lamination for the outdoor protection. The only thing is I want to get vivid colors which look well saturated, for example the Reds and Blacks are a little dull when the vehicle is under sunlight. Currently I am using 10 pass CMYKcm_90. Can anyone help me with a good setting about what to increase for better results. Should I go with 12 pass or a lower pass with higher saturation. Any solution will be really helpful. Thank you.

Hi @toxicskin.com10082, Please find attached a helpful document for your case. I hope it answers your question.