4891 Highway Haulers was a Creator set released in 2006 which includes 209 pieces. It included directions for six models; two easy, two advanced and two expert. The easy models are a dune buggy or a Hummer like vehicle. The advanced models are a dump truck or F-1 car. The expert models are a mobile crane or car carrier with two cars. Only one model could be built at a time. It's recommended for children aged 6 through to 12.