Create a hyper-realistic image of a posh London street in winter, blending the aesthetics of the Victorian era with retro sci-fi elements. The scene is illuminated by oil lanterns casting a warm glow against the backdrop of falling snowflakes. Mechanical cars, reminiscent of old science fiction, glide through the slush, their intricate designs showcasing a fusion of Victorian elegance and imaginative technology. People dressed in period-appropriate formal attire navigate the slippery sidewalks, holding black umbrellas to shield themselves from the wintry mix, their breath visible in the crisp air. The atmosphere is alive with a sense of nostalgia and innovation, capturing the essence of a bygone era infused with fantastical elements.