Maybe it's just because I notice it, but there are more than a few modern auto manufacturers that offer a color that is very similar to Lime Gold.
Colors go in and out of fashion. Seems to me that greens, along with bright, primary colors were big in the '60s, browns and golds in the '70s, pastels and teals (think Miami Vice) in the '80s, silver and beige in the '90s...etc.
My understanding is that a color change generally hurts the value some.
- Phillip