Luminescent Solar Concentrators (LSCs) offer a transparent alternative to traditional photovoltaics for automotive integration. However, the efficiency of monolithic LSC panels is traditionally limited by reabsorption losses. This paper proposes a novel Dual-Segment Biomimetic (DSB) architecture for a 1.18sqm automotive sunroof. By segmenting the aperture into two 0.59sqm modules and integrating a fractal venation network of PV micro-strips governed by Murray's Law, this study demonstrates a theoretical pathway to overcome the scaling limit. Analytical results suggest a potential Power Conversion Efficiency (PCE) increase from a 3.0% baseline to 8.2%, while providing functional thermal management suitable for high-UV environments like Assam, India.