Cinematic 8k wallpaper featuring cars in a high-speed race through an intricately detailed cityscape, captured in extremely detailed 4k digital painting. The scene is enhanced with motion blur, lumen reflections, and atmospheric lighting, showcasing subsurface scattering and hyperrealistic elements. The composition is intense and cinematic, exuding the feel of promotional art. It's designed to be trending on Instagram and Tumblr, captured with an f/1.8 aperture and 85mm lens, exhibiting ultra-realistic quality with VFX post-production. Rendered with hyper-detailed precision in HDR, 4k, and 8k, the motion blur enhances the dynamic scene. Created using Unreal Engine 5 and Cinema4D, with redshift render in 8k, it's infused with subtle film grain for an authentic movie-quality finish, offering an awe-inspiring visual experience.