This bubble chart visualizes the correlation between engine power, torque, and fuel consumption across motorcycle brands using D3.js v7. Each circle’s x-position represents average engine power, its y-position average torque, and its radius encodes fuel consumption, while color distinguishes brand. The chart includes interactive tooltips on mouseover, a bubble-size legend, and a categorical color legend. Data is loaded from a CSV file, and the visualization renders as an SVG with linear scales and ordinal color mapping.