We are also at around 4%.
5 Series BMW: $3,693
Net Worth: ~$93,000
It's funny that KBK say my car should only get 21mpg combined, my data from the last 3 years I've owned the car is averaging 25.8mpg, and routinely I get 30+mpg during the summer.
Originally bought the car before MMM for $8,000 with 131k miles. After 1.5 years of a 60mi a day commute we moved to within a 5 mile radius of everything and in the 1.5 years since then we've gone from 161k to 166k on the car. Can hardly believe before I had engineered a life which would put 15,600 miles annually just to get to work.
My fleet of bikes were bought for $1,000, $600, $29, $0, and $130 for the trailer, so about $1,759. If included that brings me down to 5.6%.