Although there are some similarities, these two are different in most aspects such as body structure, powertrain, fuel economy, market segment, and maximum occupancy. First of all, although one is a Sedan and the other an SUV, both have similarly sized ground shadow. Also, the 2017 XC90 Hybrid, being a hybrid, gets 75.1 more miles on a gallon than the 2017 Model S. In addition, there is a difference in the number of passengers; the XC90 Hybrid seats two more the Model S. Among similarities are the market segment, starting price, and ground shadow size.