A highly detailed illustration of a sleek Black Mercedes Benz AMG GTR parked near the iconic Brandenburg Gate in Berlin, Germany, during a rainy afternoon. The wet streets glisten under the muted noontime light, reflecting the car's glossy surface. Drops of rain bead on the car's aerodynamic silhouette. The scene is captured in stunning 8K resolution with HDR quality, bringing out the intricate details of the AMG GTR's design, including its distinctive grille and sporty curves. A few colorful umbrellas of pedestrians passing by add a touch of vibrancy to the overcast atmosphere, while the soft glow of nearby streetlights begins to appear in the gray mid-day ambiance, all rendered with Octane's signature photorealistic clarity.