Two SUVs with some similarities, but otherwise different in most aspects such as the powertrain, fuel economy, market segment, starting price, horsepower, ground shadow size, and height. First of all, a bigger engine usually means less mpg. But the 2016 Volvo XC90 Hybrid has a more powerful engine and it gets 8 more mpg than the 2015 Lincoln Navigator. Also, the 2015 Navigator is priced $6,620 lower compared to the base MSRP of the 2016 XC90 Hybrid. In addition, the Navigator body is slightly larger than the XC90 Hybrid, and in addition to that, it's also taller. Among similarities are the body structure, market segment, and maximum occupancy.