Basically, it's just the color offering. For example, the 2018 Highlander is available in these colors:
Midnight Black Metallic Blizzard Pearl Celestial Silver Metallic Predawn Gray Mica Salsa Red Pearl Ooh La La Rouge Mica Toasted Walnut Pearl Alumina Jade Metallic Shoreline Blue Pearl
There may be some colors that are not available on some trim levels, and available colors may change from year to year. On the 2016 Highlander, the available colors were:
Midnight Black Metallic Blizzard Pearl Celestial Silver Metallic Predawn Gray Mica Salsa Red Pearl Ooh La La Rouge Mica Toasted Walnut Pearl Alumina Jade Metallic Shoreline Blue Pearl
So while the color may be one of the first things you notice, it really doesn't determine much about the features of the car or model year.
Answers
Midnight Black Metallic
Blizzard Pearl
Celestial Silver Metallic
Predawn Gray Mica
Salsa Red Pearl
Ooh La La Rouge Mica
Toasted Walnut Pearl
Alumina Jade Metallic
Shoreline Blue Pearl
There may be some colors that are not available on some trim levels, and available colors may change from year to year. On the 2016 Highlander, the available colors were:
Midnight Black Metallic
Blizzard Pearl
Celestial Silver Metallic
Predawn Gray Mica
Salsa Red Pearl
Ooh La La Rouge Mica
Toasted Walnut Pearl
Alumina Jade Metallic
Shoreline Blue Pearl
So while the color may be one of the first things you notice, it really doesn't determine much about the features of the car or model year.