The FX shares its basic platform with one of Infiniti's most aggressive performance
sedans: The G35. This platform creates a nearly perfect front-to-rear weight ratio that allows the...
... fully independent suspension to work superbly. In the FX45, an enormous set of 20-inch wheels and tires cements that connection. While their grip is not in question, the firm ride of these round rubber giants might be somewhat unsettling.
Once under way, the FX's steering is tight and linear, responding instantly to the driver's input while the sophisticated suspension keeps the FX nearly level in all but the most extreme cornering maneuvers. The steering can feel a bit heavy due to the large tires, and tight turning circles are not what the FX does best.