This bubble chart visualizes the correlation between average horsepower (x-axis), average torque (y-axis), and highway MPG (bubble size) for various car makes, using a turbo color scale to distinguish each brand. Interactive tooltips reveal the make on hover, and the SVG is generated dynamically from a CSV file. The chart employs D3 v7 APIs including `d3.csv`, `d3.scaleLinear`, `d3.axisBottom`, `d3.axisLeft`, and `d3.scaleOrdinal`. A legend shows the bubble size scale and color key, with smooth transitions on tooltip display.