This scatter plot shows the relationship between horsepower and fuel efficiency for ten car models, with points colored by cylinder count (4, 6, or 8) and a legend indicating the mapping. It uses D3 v7’s `scaleLinear` for axes, `scaleOrdinal` for color, and `axisBottom`/`axisLeft` for tick marks. The SVG circles are positioned via the `cx` and `cy` attributes. Data is loaded from a local `cars.csv` file.