Welcome!
Nice VIP (Very Important Plymouth)
66 first year to compete with Phords upscale LTD package and the Chebbie Caprice.
All had well appointed premium interiors similar to Imperial, Lincoln and Cadillac but on the entry level makes of the big 3.
VIP's are very nice cars but did not sell very well.
Problem was the price was almost that of a Monaco or Newport. Add options and well you get the point.
Love the color combo on yours.
Cheers