Enable methods to be chained, instead of keeping them be called by name only.
var x = "Name";
x.yourMethod1().yourMethod2();
Make it configurable . Expose you initialization method / object So, that developers can configure it for their need. Leave possible values of parameters as comments.
var configObj = {
color : 'red', //'green', 'blue'
model : '2016' // '2015', '2017'
}