This scatter plot visualizes the relationship between a car's fuel efficiency (mpg) and its horsepower using data from the auto-mpg.csv dataset. The plot uses circles to represent individual car models, with the x-axis showing mpg and the y-axis showing horsepower. The visualization is built with D3 v5, using `scaleLinear` for both axes, `axisLeft` and `axisBottom` for the axes, and `select` to target the SVG element. The data is loaded via `csv` and processed before rendering.