My first try with @Kling_ai 4.0 Flash

15-second ultra-cinematic racing film. Photorealistic. Premium blockbuster aesthetics. A spectacular race track built across a vast tidal ocean basin at sunrise. The track consists of a narrow elevated road that periodically disappears beneath massive waves. 0-3s Two hypercars race across the exposed ocean floor with enormous cliffs and golden sunlight surrounding them. 3-6s Water begins rushing across sections of the track behind them. 6-9s The cars accelerate toward a section completely covered by a wall of seawater. 9-12s They burst through the water curtain at full speed, water exploding around the vehicles. 12-15s They emerge onto dry track as the ocean closes behind them, racing toward the sunrise. Photorealistic water physics. Gorgeous golden reflections. Huge scale. No fantasy creatures.