2015 E-Z-Go Terrain 250 Gas, 2015 E-Z-Go Terrain 1500 Gas Big jobs. Rough terrain. The E-Z-GO Terrain 1500 won t shy away from hard work. Its beefier 16-hp engine, 800-lb capacity and manually locking rear differential offer all the muscle you ll ever need. Bucket seats allow driver and passenger to complete the day s work in comfort.