The only thing I would want is.... A Bigger fuel tank.
Glad you're loving your CX-5! It really is a great car.
On the bigger fuel tank, I believe the FWD has a 14.7 gal. tank as opposed to the 15.3 gallons on the AWD models.
Regardless, looking at your Fuelly stats, I notice you are averaging 30.1 MPG but only 295 miles per tank. That means, on average, you still have 4.9 gallons in your tank when you fill up. At 30.1 MPG, this equates to almost 150 miles (or three hours driving time). While I don't recommend pushing the limit and using every last drop, you are only using less than 2/3 (on average) of your tanks capacity. The fact is, most cars fuel gauges are set up conservatively to prevent you from running out of fuel. I have run my CX-5's trip computer down to "0 miles until empty" and even beyond by as much as 15 or 20 miles with no ill effects.
And don't believe the old wives tale that this is bad for your fuel pump. The fact is, the fuel pump is cooled by the fuel that flows through it, it does not depend upon being submerged in fuel for it's cooling. As long as you don't run it dry it will suffer no ill effects. Before fuel had 10% ethanol, it was a good idea to top off more regularly because this lessened the amount of air inside the tank (which could cause water condensation with abrupt changes in ambient temperature). The solution was to add some fuel drier which would cause the water to be absorbed into the fuel where it would actually help the engine burn more cleanly and run more efficiently. But fuel drier is nothing more than alcohol. Now, almost every tank sold comes loaded with fuel drier. That, combined with the fact that modern vapor emissions equipment does not allow fuel tanks to "breath" as they once did means that vapor condensation is no longer a problem. With these changes there is no longer the need to keep your tank topped off.
So, go ahead and use some of that extra 150 miles you are leaving in your tank (on average) every fill-up.