possibly on the hub points, make it jut out jsut a bit mroe, then make it like this
|^^^^^^^^^^^^^^^|
]--| (this is the vehicle) |---[
| __________________|
and then on each end of the [ there could be a wheel, and the track would "feed through" the 2 wheels.
0--}^^^^^^|
----(vehicle |
0--}_______|
0=wheel
--- is the track
--} is the hub point where is holds the wheel
this whole thing might turn out as spam if my letters dont come out the way i typed