50 Foot Track

It looks better than Bluetrak due to the divider down the middle to help keep cars from banging into each other. Plus the color black gives it that REAL track look. The major problem I would see is getting it to lay flat...probably would have to use velcro to hold it down. But that isn't too bad of a price...when you consider it over a 100 ft of track if you put both lanes together.

Preacher

Its difficult to see the divider but it excessively tall. I've seen cars(on video)'jump' and/or 'climb' over it without much effort. A wider divider could mean fewer DNFs due to interference.

I'm gonna guess this is going to have all the same problems BluTrack has, shy of the wider divider. I feel two-lane rolls like this are more trouble than they're worth unless you're going to fix them permanently to your track.