A highly detailed 8K illustration of a sleek Black Mercedes Benz AMG GTR parked on a cobblestone street in Berlin, Germany. The scene captures the dynamic ambiance of a rainy noon, with reflections glistening on the wet pavement and the iconic Brandenburg Gate visible in the background. Raindrops ripple over the car's glossy surface, highlighting its aerodynamic curves and aggressive stance. The environment features towering trees lining the street, their leaves rich and vibrant, adding a touch of nature to the urban setting. HDR effects emphasize the contrast between the moody sky and the car's shiny exterior, creating a vivid and immersive visual experience rendered in Octane.