I drive barefoot or socks if working. More room to move around and stretch out next to the pedals. My feet get hot in shoes. I use slip-on shoes and slide them under the seat...as much as one can in a C7!
Piloti: Stradale CL or Spyder SV or DTM-R (my favorite) are all great choices. They are designed for easier heel toe shifting and have a narrow toe box to create more clearance between the pedals. Nothing worse than a wide shoe hitting the pedals. I have been using Piloti for over 10 years and never had an issue. Also they look like a casual shoe so you don't have to change them after tracking. If you are going to be using the car at the track consider the sole compound. You want a shoe that will not hold on to oil, a real problem if it gets on the pedals. $100 is what they cost.
Years ago I had a pair of John Surtees Racing shoes. They were great. They were very light, went on and off like loafers, and had a thin, but firm, sole that was not slippery and made good contact with the pedals. But they stopped selling them, I think, because they were not fire resistant.
I think you want something with a thin sole that is not slippery. For brake feel, I don't think you want something with a very cushioned sole.