Thanks Matt. Someone mentioned motors earlier... this is a key point. Since we have a relatively small track, we do not use 16D motors. There are a wide variety of motors for ten dollars or less that are very good - Pro Track Cheetah II, JK Falcon 2 & 4, Slick 7 Mini Brute, etc. We use 25 ohm controllers with these motors and have a lot of throttle response all the way through. Interestingly, we have a $5 motor rated at 21,000 rpm that we spec in two divisions. The divisions that have motor options can turn around 23 laps in minute. Cars with the slower motor turn 20 - 22 laps in one minute and are much easier to drive. Here's another option for Womps... lots of circle tracks in the 70's and early 80's ran compact cars with big fat tires:

Compact cars like the Nova, Camaro, early Mustangs, Maverick, etc. in 1/32 scale have a 3.25" wheelbase. They look like these cars when mounted on a Womp chassis.