To start, these two SUVs differ in size. The Lexus NX is a compact crossover that can seat five people, but it’s designed to be a bit sleeker than the larger RX. The new Lexus NX offers 71.6 cubic feet of interior volume, with an overall height of 64.8 inches. While the Lexus RX also currently seats five people, it offers a little more space for your money, allowing passengers to stretch out more. With the introduction of the expanded RXL, you have the option to add a 3rd row of seating with even more cargo space. Overall the standard Lexus RX has more leg, shoulder, and headroom than the NX, offering 121.3 cubic feet of interior volume, and standing tall at 67.7 inches. On the outside, the NX is eye-catching with standard 17-inch wheels and available upgraded 18-inch wheels that will come with the Premium Package or on NX F SPORT models. The RX comes standard with 18-inch wheels and the more commonly seen, upgraded 20-inch wheels.