This interactive bubble chart visualizes the relationship between average horsepower, torque, and highway MPG across 31 car makes. Each circle’s position maps to horsepower and torque on the x and y axes, while its radius encodes highway MPG. Color distinguishes car brands, with an ordinal scale using d3.interpolateTurbo. Hovering reveals a tooltip displaying the make. The chart includes legends for bubble size and color categories, using SVG rendering with D3 v7 scales (d3.scaleLinear, d3.scaleOrdinal) and event handlers for interactivity.