Well, that won't be possible, please note that optional parameters won't work if they're in the middle.
From the Route Properties => /cars/key2 is: /cars//key2
Maybe you can find a workaround from this:
Well, that won't be possible, please note that optional parameters won't work if they're in the middle.
From the Route Properties => /cars/key2 is: /cars//key2
Maybe you can find a workaround from this: