Looks like D3 is getting ready to put out some parts for the ATS-V. Hopefully they'll start filling in the category once the ATS-V rolls out.
http://d3groupinc.com/products/ats/ats-v/
Here's a recent video of their CTS-V on the tracks.
[video=youtube;whFJrlupPJs]https://www.youtube.com/watch?v=whFJrlupPJs&index=3&list=UU2lqgloXS0ofnWdoDSyyhQQ[/video]
http://d3groupinc.com/products/ats/ats-v/
Here's a recent video of their CTS-V on the tracks.
[video=youtube;whFJrlupPJs]https://www.youtube.com/watch?v=whFJrlupPJs&index=3&list=UU2lqgloXS0ofnWdoDSyyhQQ[/video]