This bubble chart visualizes vehicle performance by mapping horsepower on the x-axis, torque on the y-axis, and highway MPG as bubble size, with each make colored using d3.scaleOrdinal and d3.schemeTableau10. Data loads from a CSV file via d3.csv, and circles render in SVG with hover tooltips showing exact values. The chart includes axis labels, a size legend for MPG, and a color legend for car makes.