This scatter plot visualizes the Auto MPG dataset from the UCI Machine Learning Repository, showing the relationship between car cylinders and miles per gallon, with points colored by species. The visualization uses D3 v5 to create an SVG rendering, employing `d3.scaleLinear` for both x and y axes, `d3.scaleOrdinal` with the `schemeCategory10` color palette, and `d3.legendColor` from the d3-legend library to generate a color legend. Axis labels, tick styling, and legend text are styled via external CSS for a clean, readable presentation.