This is such a good product that my 8 year old Grandson was able to use it for his 3rd grade science project. Making subtle and not so subtle changes to the fuel mixture to see the difference in the amount of propulsion on each test run. It traveled between 65' and 127 feet on the test runs, it was great and he had a blast. You will need extra packets of the fuel from Mattel.
Was so excited to help my boy with this Christmas present, but it DID NOT work at all. I just had to tell him Santa's elves must have been too busy and messed it up. The car looks well built and is exciting when the kids take it out of the box but the chemicals do not shoot the car down the road. Just hated it.
Read the instructions, mixed up the fuel, took it outside, and ..... nothing. Shook it again for a couple of minutes, still did not go. Yes, durable, but ???