The guys that built this car are not idiots. We actually speak with them frequently. They have much background in this industry and have JBL factory backing (they also rep the line locally and were in my shop this week). I am sure this car sounds stellar. They tune MS-8s with the likes of Gary Biggs (if you have to ask who he is candeshop, then you are proving your newb-ness in this industry).
They specialize in very high end car audio and home theater and have much history going back to Sensuous Sounds. They work by appt only and are not open to the public. Candeshop-go to a car show or two before commenting on stuff like this. Maybe read a book even. You are digging yourself a hole son...