well the hyper 8 port engine that comes with it is a very strong motor. the carb. can be a little tricky to tune and hold a tune. but dont let that scare you away from this buggy. all you have to do later down the road is get an O.S carb. it will run you about 48$, But the engine itself will hold up for a long time. I think you will be very happy with it. Good luck