Goes with LEGO technic 1:8 scale models.Very good quality but just a little challenging. I really like this car except the instructions didn't tell me where to run my wires and I had to take back apart to get them in the right position. Runs and drives great and very great idea for anyone who wants a challengeFirst some background. As a mechanical designer I enjoy putting things together as a hobby and a way to decompress as well as explore new ideas that help me in my own profession. This model comprised of 4449 pieces dose not disappoint. Not once. It is truely a remarkable work of elctro mechanical art. Humbling in some respect because the level of engineering genius behind it is at another level. If you are brave and looking for something that will take some time to build. I highly recommend this model. It is therapy for the mind. The instructions are very well written and never leave anything to guessing. Well worth every penny spent.Challenging build provides hours of enjoyment.I am still in the middle of the assembly be glad to get it finished too see how well it works.