Toyota Prius vs Jeep Patriot: the great MPG test: Apparently the onboard computer in the Prius lies through its teeth. These folks did a test between a Prius and a Jeep Patriot. At the end, the Prius claimed 57 mpg. Then they checked actual fuel levels to see how much had been used:
The result was astonishing: both cars had used nearly identical amounts of fuel. The Jeep had averaged 38.9 mpg – only 3.1 mpg less than its computer had recorded. However, the computer of the Prius appeared to be telling whoppers: it actually achieved just 39.9 mpg – a massive 17.1 mpg less than it had claimed.
I maintain that the Prius is something of a crock. Though it did get us all thinking green, this thing isn’t close to as wonderful as they all claim.
Update: This article claims that this test is flawed. Due to the type of fuel tank used by the Prius, the method they used to calculate real-world mileage is invalid, the article claims.