I remember going way back to my early Ferrari days, having the nose repaired and/or repainted was a regular ordeal for many guys in the owners club. Some of the body shops that specialized in those cars were making a killing off of the "more money than brains" owners who insisted their cars were kept looking new. They would have those shops redo the underside of the nose constantly, at a huge cost. For that reason the aftermarket developed a small air ram that installed on the front struts of some 'exotic' cars. It had a switch on the dash that allowed the nose to be lifted a couple of inches in order to clear driveways, etc. Then the manufacturers of some 'supercars' started installing that type of system on their cars from the factory...which many still do.
On the other side of my collection was the Porsche crowd. 911's had a similar issue, but in that camp the thinking was to protect the underside of the nose with a skid plate. The aftermarket developed add-on kits with a metal plate (much like a "splitter") that fit under the nose.
Oddly it was my buddies in the 'custom pickup truck' crowd that developed air bag suspensions. The initial goal was to allow the entire vehicle to be lowered literally to the ground ("laying frame"). But also be raised for actual driving. A side benefit is you could raise the nose further to clear steep driveways, etc. It was fairly easy to make a air suspension for a truck due to it having a box tube frame and simple suspension design. The whole air suspension thing has really developed into a very interesting product with computer controlled systems that offer a very good compromise of handling, comfort, looks, even high performance, in a practical and reliable package. And for many types of vehicles (including motorcycles).
I've never been into the Japanese car scene. But I see their solution is to make the whole front bumper quickly removable with 'elastic bands' holding it on. When they get to a driveway they get out of the car and remove the bumper, then reinstall it after crossing. Seems like a poor answer to me. But I guess it is simple, cheap, and easy to make.
So this issue is certainly nothing new. And lots of creative ideas have been developed to get around it. But we are a little more limited in options with the X. I think the ultimate answer is a air suspension; as mentioned it has been developed, but not easy nor cheap (figure about $3000 minimum, and can go much higher with options). However if you go with coilovers then I would recommend getting all four, not just the fronts. Not only for the adjustability but more so for a balanced handling package. As to how much you spend (which ones you choose), that may depend on your goals, budget, and planned future for the car. The 'affordable' ones have definite drawbacks in my opinion. I consider them as a cheap but very compromised answer (low quality, poor ride, short lifespan, etc). However the 'good' ones are very expensive. For most other vehicles there is enough demand that you will have a wide selection of options, including a midrange package. But as I said we are more limited with the X. Consider the total value of your car, how long you intend to keep it, how you drive it, and how much your wife will allow you to spend.