futuristic eco-friendly cityscape with sleek skyscrapers and autonomous vehicles

future city skyline skyscrapers urban landscape futuristic architecture ecofriendly green technology smart autonomous vehicles electric cars holographic displays sustainable design planning clean energy innovation utopia scifi cyberpunk modern development transportation artificial intelligence digital infrastructure roofs pedestrians roads streets business district metropolitan hightech living progress sustainability renewable greenery concept art rendering cityscape panorama aerial view eco-friendly sleek