I don’t think Sewell in North Austin has a body or paint shop. My guess is that they sub it out to Berlis in Pflugerville who do a number of high end brands. In fact look at their website and I think I saw an SVR. You may want to take it there - they did a valence new spray on my XFR a few years ago and it was excellent.

www.berlisbody.com

But I don’t let Sewell wash my car either 😂