Facts sure are a funny thing. In fact I rented a Prius for 2 weeks in 2015 when I was in Florida. I calculated the gas mileage to be between 60-65 MPG, very impressive, but nowhere near the 200 MPG you are claiming.
The problem with the Prius and other electric cars is for 1, the battery consumption. Replace those batteries and see how cost effective it is. Those batteries have a life, which maybe you haven't considered, and if it costs $5,000 to replace the batteries after a certain number of years, that needs to be factored into the cost savings, or cost drain, however one looks at it.
Also, the cost to build that Prius is MUCH higher than almost if not
all other ICE vehicles.
Here's a report on it from WIRED mag:
https://www.wired.com/2008/05/ff-heresies-09usedcars/
Here is more:
https://axleaddict.com/cars/Prius
Here is another report that shoots down your claim of 200MPG. And I'm sure you'll want to say it is full of crap, however it comes from the Liberal Environmental Protection Agency:
http://kscequinox.com/2014/11/toyota-prius-not-as-eco-friendly-as-some-think/
From that article above:
Although the cost of the car was and still is inexpensive, the other two claims, fuel efficiency and eco-friendliness, can’t quite stand up to scrutiny. Let’s start with fuel economy. According to the Environmental Protection Agency, the Prius achieves a combined efficiency of 46 miles to the gallon, averaging 48 in the city and 45 on the highway.Hmm.. so much for 200MPG eh?
And one other thing to consider, in electric mode it achieves a whopping 80 HP.
When combined with the ICE, the HP jumps to 137.
The article points that out, and once you start laboring that engine, putting a load on it, you can't survive on Electric Power alone.
That was my experience when I drove it for the 2 weeks back in 2015.
I thought it was a neat car, but it certainly isn't the Panacea for all the concerns about the HORRIBLE Carbon Footprint, which really isn't horrible at all.
P.S. More from the equinox article:
The issue is, a car weighing that much ends up using more fuel to stay at highway speeds because of its lack of power. The problem increases when you drive even more quickly. The British television show, Top Gear, conducted an experiment involving a Toyota Prius and a 414 horsepower BMW M3. The Toyota was tasked with driving as quickly as possible around a race track for ten laps, while all the BMW had to do was keep up.
When the ten laps were up, the Prius managed 17.2 mpg while the BMW averaged 19.4 mpg. It’s odd then for any car sold based on efficiency, when that efficiency depends on the driver. To quote Top Gear further, “It’s not what you drive that matters, it’s how you drive it.” The second assumption made about the Prius is that, because it’s a hybrid, it will be environmentally friendly. This simply is not the case. The manufacturing process for the Prius (and all other hybrids) is extensive and complicated...
