2019 Ranger Z518 150 PROXS UPGRADE WITH Z-PACKAGE AND ULTREX 80 I-PILOT GPS TM. In the 18-foot class, the Ranger Z518 stands alone in terms of all-out performance, economy and features. Weve maximized inner storage space up front with a pair of 8-foot rod boxes, a gelcoat-lined, insulated in-deck cooler and large starboard gear box. The oversize casting deck and 95-inch beam betray the boats si...