My daily commute is around 40 miles one way. In the morning, the first 18 miles is open interstate, where I do around 75mph, and the rest of the trip is on a 2 line road with lots of hills, and I often get stuck in lines of traffic behind school buses. With gas averaging $2.28/gallon around here, I was spending $40-$50 a week on gas, and having to stop at least twice a week to gas up. I'm hoping with my HCH, both of those figures will go down.