
This end of this track is nice - long straight leading into sweeping turn and then some bendy bits. The far end would need to be cut off but the circuit could be tied together neatly.
Here's an HO design that would seem to be faster.

It would be tight to fit a 3 lane 1/32 - 1/24 track in this space, but with a routed track it could be done and include some elevation changes.
This could be stretched out to be 14' long, and would have room for a pit area in the right side triangle.

You could have a lot of fun with varying radius turns routed on this design, and also incorporate elevation changes.
Lastly, think about what you want it to look like when done so it feels like racing on a real track.
