The Dodge Durango, Ford Explorer, Land Rover LR4 and the Jeep Grand Cherokee are built using a car-like unibody structure, but add a reinforced sub-frame and offer advanced traction management systems that give them added off-road and bad-weather prowess.
The bigger threat to Priceline down the road is whether or not the likes of Apple or Google can gain traction in online travel, especially with mobile users.