~57k miles. 50% Prius 50% Plug-In. The results are in!

Here is a quick run down of how the Prius and a Plug-In Prius compare.

Car: 2006 Toyota Prius
Conversion: Hymotion in 2008

Total miles driven: 56823.2
Miles driven Prius: 28665
Miles driven Plug-In: 28158.2

Prius Data
Gas used: 501.36 Gallons
Gas cost: $1485
Average MPG: 57.2
Average CPM: $0.052


PHEV Data
Gas used: 228.56 Gallons
Gas cost: $689.10
kWh used: 3884.5kWh
kWh cost @ $0.08: $310.76
Total fuel cost: $999.86
Average MPG: 123.2
Average MPGe: 81.8
Average CPM: $0.036


Other data
Total gas used: 729.92 Gallons
Total gas cost: $2174.1
Total Fuel cost: $2484.87
Average gallon gas: $2.979

Savings over 25MPG car
1543.01 gallons of gas saved
$4285.17 in gas saved
Projected savings @ 100k miles: $8088.12 ( This continues to go up as I drive with the Hymotion battery. I should reach $10k saved by the time I reach 100k miles.)



My guess is that depending on what your commute is you should see similar results with an official plug-in Prius.

I really don't have anything else to add. If you have any questions I'll try to answer them.

 

The only real problem I've had was the DC-DC converter failing. Other things were the low 12v issue, had to have them reverse the fan wires as it was installed wrong at the factory, and a loose wire on the wire harness which I fixed myself. Other than that it has worked great.

 

Dont really know. I was just told it failed.