Have owned this car for 8 days and the wife is driving her normal traps, only shows having used 1/2 tank and over 240 miles, something must be wrong with this thing, must take back to dealer, Anyone else having this issue. he he he he he I think I love this car.
If the gauge shows 5 pips remaining, she may have used as little as 5 gallons, if her gauge reads the same as mine. Of course, this is much too early to determine actual fuel use. Wait until after the second fillup.
Are you 100% sure the fuel tank was FULL when you picked the car up? My car will go about 80 miles before the first, top pip goes out. I'd fill the car up to the first click and test again. Also, check your tire pressures. This is very important that they are at the correct (some owners prefer 2 or 3 psi higher) to get the best mpg's. The correct pressures are shown inside the drivers door on a label.
Very clearly you are experiencing excessive economy. Check the traps higher up in the mountains and be sure to carry about 30 lead (Pb) bricks in the trunk. That will cure the problem.
Side effects include giddiness, happiness, a zen-like feeling, increased monetary savings, bragging rights and occasional forum postings. None of these are life-threatening. If conditions continue, learn to live with it.