I had in my childhood (I'm now 20) a X-Trek II track and came across while cleaning up on the old rails. The cars no longer worked, so I looked to see if there are these tracks still to buy. I came across this new X-Trek-pack and I'm thrilled. Although one has to learn these little speedsters deal, but when it once dominated it makes a hell of fun. In addition, I am pleased that we can combine the old rails with this and I now own a total length of tracks 25m. I do not know yet where I will permanently establish this path, but because there is a solution. For the small loops you do not even need the Turbo Boost when this shoot but enabled the cars through the web and are almost uncontrollable. I recommend this purchase wants to have a little fun each and find this track much better than the overpriced Carrera tracks. The car battery lasts longer than specified. My first ride was about 20 minutes. Clear the cars lose a bit of power when the battery from draining, but that's at these speeds even more of a positive argument! Strong buy recommendation: fun: 5 stars, build: 5 stars Price: beat / 5 stars (I would say, however, that +5 years is somewhat optimistic In my opinion, you should be at least 8 years.!)