(all of these i built myself) The first one at the top is a speed truck with 4 wind up motors in it and it can reach about 10 mph. The second one is a gooseneck trailer that can hold roughly 20 lbs. the 3rd one is a realistic looking truck with cool exhaust pipes in the back and tows the gooseneck. the 4th one is a crawler with working suspension and is all techinic. the last one is a really srong truck tht can be dropped 20 foot onto concrete with no damage and it weighs roughly 2 lbs and 3 oz. please tell me which you like best! (sorry for blurry pictures my phone is broken right now)