Electric carts make on-course mobility relatively easy, but with minimal athletic effort. In the interest of a healthy environment and golfer lets look at the Turf Trike.
At first I was a little nervous about the narrow tires, but they are 4 1/2" wide, and the three of them should spread out the weight enough that you wont see three lines zig zagging from hole to hole. Some of the features include a cup holder, scorecard holder, front carrier (which comes off and allows you to roll your bag up to your shot, leaving the Turf Trike behind), rear saddle bags, 7 speed Sram gearing (makes hills easier), drum brakes (low maintenance) and is handmade with 7005 aluminum.
In addition they are working on a Turf Trike E, an electric version due to come out soon. I've got to say that I like the pedal version and see potential on properties that have a low rise topography. Check them out at www.turftrike.com