Well, joys of CVT eh? Look at the shape of the Murano's curve, smooth as silk. The FX however has that truly nasty turn for the worse at 90MPH like that's when it hits the far too tall over-drive cruising gear and can't accelerate it's way out of a wet paper bag.
Let's see if we can find gearing info from Infiniti's FX web site...nope, I can't find squat on the tranny at all. Is it just a normal 4-speed auto?
Equipped with Nissan's ubiquitous 3.5-liter V-6, which develops 280 horsepower in this iteration, the FX35's pace is surprisingly close to that of the FX45, which has a much more powerful 315-hp V-8. We measured the sprint to 60 in 7.1 seconds and the quarter-mile in 15.5 seconds at 91 mph (6.3 and 15.0 in the FX45). Top speed was an ungoverned 137 mph, enough to see off most expensive German sedans with their 130-mph governors.