2010 Toyota Prius Fuel System Other Problems

WHILE DRIVING BACK TO HOME FROM WORK IN DC TRAFFIC WHEN THE TRAFFIC STARTED GOING WHEN THE SIGNAL TURNED GREEN I PRESSED ACCELERATOR ALL OF A SUDDEN AFTER LITTLE SOUND DIFFERENT WARNING LIGHTS ILLUMINATED ON THE DASH ALONG WITH THE LARGE RECTANGULAR WARNING MESSAGE SAYING "CHECK HYBRID SYSTEM". THE CAR CAN GO ONLY UNDER 10 MPH AND I PULLED ON TO CURB AND TOWED TO NEAR BY DEALER (OURISMAN CHANTILLY TOYOTA). TWO DAYS LATER I GOT CALL SAYING INVERTER IS AN ISSUE TAKES TWO TO THREE DAYS TO GET PART AND WILL BE REPLACED FOR FREE AS THE CAR HAS ONLY 36K MILES ON IT. WE HAVE TO RENT CAR (TOYOTA SHOULD PROVIDE THIS SERVICE AS IT IS THEIR COMMON DEFECTIVE PART AND THE REPAIR IS UNDER WARRANTY). *TR

I OWN A 2010 PRIUS. AFTER PUTTING 10K MILES ON IT, I HAVE YET TO SEE THE 50+ MPG. I COULD HAVE EASILY BOUGHT A HONDA CIVIC, SAVED $15,000+ AND STILL GOTTEN 38MPG. I HAVE TAKEN THE CAR TO THE DEALERSHIP ON A FEW OCCASIONS AND THEY CANNOT TELL ME WHY I HAVE LOST ALMOST 20MPG. ALL THEY CAN TELL ME IS THAT IT IS PROBABLY THE GAS THAT I AM USING. I CAN SEE HOW THIS MIGHT MAKE A SLIGHT DIFFERENCE LIKE 3-4MPG, BUT NOT 20! I BELIEVE THE 50MPG BENCHMARK GIVEN BY TOYOTA IS BOGUS. I WANT MY MONEY BACK! *TR