This area chart illustrates the trend of average electric vehicle range over model years. The visualization aggregates data from a CSV dataset, using D3.js v7 to compute the mean average range per year before rendering a monotone-smoothed area path. The chart is drawn as an SVG, with linear scales for both axes and a filled steelblue area that highlights the upward progression of range capabilities over time. Axis labels and a chart title provide context for the data.