boomzoom

Im just wondering, because I cant seem to find anything. If any of you other 3 owners have noticed that with the standard transmission. That in 1st or 2nd gear you can let the clutch go at low speeds and let the car crawl by itself. This may just be with mine. Engine idles at 750. And will crawl (on flat or slight incline) at between 1000 and 1250. I dont have to give it any gas. It just takes itself. Im not sure if its a feature by mazda. Or good engine timing and little friction.what do you guys think?