This bubble chart visualizes vehicle performance by plotting horsepower on the x-axis, torque on the y-axis, and encoding highway MPG through bubble size. Each bubble represents a car make, colored via a d3.scaleOrdinal with d3.schemeTableau10. The visualization uses d3.csv to load local data, d3.axisBottom and d3.axisLeft for axes, and interactive tooltips triggered by mouseover events to display detailed vehicle specifications. Hovering highlights bubbles with increased stroke width through CSS transitions.