French manufacturer Challenger has expanded its X line with the X150 and X250 models. Both are built on the Fiat Ducatoⓘ chassis and feature a 2.2 Multijet diesel engine with 140 or 180 hp. The X150 is 5.99 m long, the X250 is 6.36 m long. Inside, they offer a full bathroom with expandable space, a spacious lounge, and a kitchen. Prices in Spain start at €71,990 for the X150 and €72,990 for the X250.