SEAMLESS integration of the car motor sound into the track. The beats throughout are so compact -- the song just hits you like a perfectly executed Street Fighter combo.
Moreover, there isn't one part that I thought was "too much" (instruments, effects, anything) or "too little", which I find is an extreme rarity in techno songs. People tend to either get carried away and throw the kitchen sink at the audience, or they really only have 2 good snipbits that they try to drag out to a 3 minute song.
So yeah, how this has a sub-4.0 score is beyond me.