While actual costs vary from place to place and depending on fuel prices, after some analysis I’ve arrived at some staggering conclusions. When multiplying the average cost per mile of $1.28 (by default assuming current prices of about $2.25/gal) by 240 trillion yearly vehicle miles traveled (VMT), which is a rough estimate of the current total, and America’s total yearly cost of driving is $3.7 trillion , or a whopping 25% of our GDP (the actual yearly figures are likely in the range of $3.25-4 trillion). Just pause and think about that for a second: one out of every four dollars in America is spent on driving. Should Americans have to spend that much on transportation? What does this mean for lower income Americans? Also, a 10% reduction in driving would save up to 400 billion per year, and a 25% reduction would save almost one trillion per year. Twenty-first Century Urban Solutions.