Array sorting 101

I have an elementary problem, caused mostly from the lack of documentation in BlitzMax....

I am trying to sort an array of objects by a field. Here is a sample code:

SuperStrict

Type TCar
    Field color:String
    Field model:String
End Type

Local Car:TCar[100]

For Local n:Int = 0 To 99
    Car[n] = New TCar
    Select Rand(5)
        Case 1 Car[n].color = "Red"
        Case 2 Car[n].color = "Green"
        Case 3 Car[n].color = "Blue"
        Case 4 Car[n].color = "Purple"
        Case 5 Car[n].color = "White"
    End Select
    Print Car[n].color
Next

Print "Sorting by color...."

Car.Sort()  '<-- Obviously, this doesn't work...I need to specify the .color

For Local n:Int = 0 To 99
    Print Car[n].color
Next 

Am I using .sort() correctly?