Two Sedans with some similarities, but otherwise different in most aspects such as the powertrain, fuel economy, market segment, starting price, horsepower, and ground shadow size. First of all, the 2017 Genesis G90 has a more powerful engine and gets 10 mpg less than the 2017 Acura RLX Hybrid. Also, there is a notable difference in the starting price of the 2017 RLX Hybrid, which is $8,150 less than the base MSRP of the 2017 G90. In addition, the RLX Hybrid is slightly smaller than the G90. Among similarities are the body structure, market segment, height, and maximum occupancy.