This interactive bubble chart visualizes the correlation between make cost, selling price, and profit percentage for 25 car brands, with data loaded from a CSV file. Each bubble’s size encodes profit percentage, while its color represents the brand, mapped via `d3.scaleOrdinal` and `d3.interpolateTurbo`. The chart uses `d3.csv`, `d3.scaleLinear`, and `d3.axisBottom`/`d3.axisLeft` to render axes, and includes a custom tooltip with `mouseover`/`mousemove`/`mouseleave` events. The SVG output features both a profit-size legend and a brand-color legend.