This visualization presents a scatter plot of automobile data from the UCI Machine Learning Repository's Auto MPG dataset. A dropdown menu allows users to select which data column is mapped to the x-axis, while the y-axis is fixed to display weight. The visualization is built using D3 v5, employing `scaleLinear` for axes, `axisBottom` and `axisLeft` for tick marks, and `extent` to compute domain ranges. Each data point is rendered as a semi-transparent red circle via SVG, with configurable axis labels and title.