"re-sale red" is popular ( mine is) , but I`d prefer the original color , unless its a really bad one...'value' is depending on IF you are selling it and to whom.... my friend has a white convertible ,it looks good esp when we park together with my other friend with his blue convertible! red,white and blue convertibles ,side by side....
with red interior its tough to pick colors, not many choices, red body or white or black are probably your best choices... black looks GREAT , but hard to keep clean and is one of the hardest colors to paint...the lighter you paint it (white!) the easier it is , white is the color that will show LEAST FLAWS if you do an inexpensive paint job!!