I built this air dam for my midget to see if I could improve it's range. I've been keeping data on my regular commutes, and specific runs at 50mph and 60 mph. It was easy to build, and I've added an article on my site about how I built it if other want to try this. For me it didn't show much difference. Maybe 2.5% reduction in drag at 60mph. The Midget has a clean underside with nothing really hanging down. It does have holes up into the engine compartment, so I was hoping it would help, but I wasn't surprised it didn't. I'm getting good range with the car, but I'm always looking for more. I measured 112 miles on a single charge. You can see this at my site
www.electricmgmidget.com