Becuase I like to play with cars and usually ecomodding costs much less than modifying my other car to go fast. So it scratches my wrench itch and hopefully puts a few more pennies in my pocket in the process.
Save fuel in one car to buy go-fast parts for the other
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-Mike
2007 Ford Focus ZX5 - 91k - SGII, pending upper and lower grill bocks - auto trans
1987 Monte Carlo SS - 5.3/4L80E swap - 13.67 @ 106
2007 Ford Focus Estate - 230k - 33mpg - Retired 4/2018
1995 Saturn SL2 - 256K miles - 44mpg - Retired 9/2014
Cost to Operate Spreadsheet for "The New Focus"