I bought these for my kids. They were so excited when they came. we got them out of the boxes and had sticky stuff all over them. I thought that it was maybe oil or grease for the turning parts, then when the stickers started sliding off and falling off the cars we realized it was the glue. They couldn't ave gotten to warm they had been stored in the garage where it is cooler. We charged them. You can't pick them up without getting it on you. We took them out for a run. The first time my daughter made the tires spin in the air the wheels came off. Easy enough right, you just put them back in. Then my son's stopped going forward and ran only backwards, OK, can't figure that out they didn't get wet we were on pavement. Then we come home to charge them, maybe that was the problem? NO! We took the one that still worked, as long as we can keep the wheels on it, out to run on the side walk and drive way. It worked for a while, my daughter loving it, then the front tires flew off again. Put them back she runs it about 5 more minutes and then it stops. Will not go forward, backward, spin or just move. The light is on but nothing is running. Still doesn't work. after trying to charge the battery. Now I have disapointed kids because the cars wont work and I'm out the money. I wouldn't recamend these to anyone that want the cars to actually run. By the way I've only had these a week.