Results

I have 2 metrics that I will be using throughout my project, the first is gas mileage. Since I use this car to commute to and from work for a round trip of 70 miles a day, mostly highway, I should be able to get repeatable results as long as control my speed. The benchmark from when i first got the car has been a repeatable 28mpg every week and now I am averaging 30mpg. The other metric that I will use throughout this project is a rolling speed down a steep hill on my way home from work. There is a hill about a mile long that I usually enter around 65 to 70mph, after about 30 seconds the car has slowed to a coasting speed and will stay at that speed for the rest of the hill. I've also entered the hill with around 55mph and the car has speed up to the coasting speed. When I bought the car I would coast around 58mph with the top down and 60mph with the top up, after my modifications I have been coasting with the top down at 60 to 63mph depending on the wind and with the top up around 63 to 65mph.