This stacked bar chart compares horsepower, torque, and highway fuel efficiency across 31 car manufacturers. The data is loaded from a CSV file and rendered as SVG using D3.js v7. The chart uses stacked segments to show the cumulative value of the three attributes for each manufacturer, with a color-coded legend. The y-axis represents the total sum, while rotated x-axis labels identify each brand. The visualization employs D3's `scaleBand`, `scaleLinear`, `scaleOrdinal`, and `stack` utilities, along with `axisBottom` and `axisLeft` for the axes.