A big thank you to Flame CZE for his help with the interior textures: he brought the dashboard to life (and adjusted the vents too), and textured the center panel (carbon part with the switches); I took this opportunity to get going with some more textures (reusing the dashboard texture for the seat, steering wheel, and foam blocks), and added labels/logos to various parts of the dashboard (AC controls, the blue knob thingy (radiator cooler), wheel and center panel button labels.
See attached screenshots for a before/after comparison.