A scatterplot of automobile data maps engine displacement to horsepower, with points colored by model year. The visualization uses the Vega-Lite API to declaratively encode the fields, while config.js customizes axis and label styling for readability. Data loads asynchronously from a CSV of auto-mpg records via d3.csv. Tooltips display car model names on hover, and the plot omits axis domains while using light gray tick marks against the dark text palette.