If your 4Runner has a rear spoiler and has the brake light on the door, that means the spoiler you have was either port installed or added as an aftermarket accessory.
4Runners that came with a factory ordered spoiler do not have the brake light lens in the rear door. In my particular area, all Sport Editions come with the factory installed rear spoiler. I'm not even sure if the Sports could be ordered without it. Almost all Limiteds have the spoiler too. The only 4Runners I see without the spoiler are SR5 models, but even a good percentage of those have it too!
My 4Runner buddy in Texas tells me that most 4Runners are built without spoilers in his area, regardless of whether it is a Sport, Limited, or SR5. He has a Sport Edition without the spoiler and tells me that he likes it better that way.