Thanks. Well I'm working on next SR3 Track Editor. Which will be smoother too. And will allow bigger terrains, I tested 2048 and 4096 (but will be 16MB and 63MB big).
Yeah well, cool as a video, but seems like you're getting too excited about it and SR.
There are few reasons it's bad. It has like no suspension at all. Meaning it is impossible to use on anything but flat asphalt. Plus it is small.
And SR is neither flat (e.g. loops and pipes are very round) nor about asphalt (quite few tracks with it). So physics wise it would just bounce like crazy in pipes etc and constantly slide on gravel spinning wheels.
Lastly until someone models it well, with a CC-BY-SA or similar license, I won't even think of it. We have a
topic with list of vehicles that may appear in future SR.
On a side note I started lately modeling a
racing hovercraft. This may be fun someday in SR.