Bowlus, revived in 2011 as a maker of luxury aluminum travel trailers, offers the Rivet from $150,000, Endless Highways from $185,000, and the limited Frontier Edition at $256,000. Standard features include AeroSolar panels, hydronic heating, a lithium iron phosphate battery (3.8 kWh standard, 11.5 kWh for $15,000 or 19 kWh for $25,000), and an indoor/outdoor shower. Optional additions include a digital leveling monitor, portable generator, outdoor cooktop or barbecue, and a plug-in coffee machine powered by the 3,000W inverter.