This bubble chart visualizes the correlation between a vehicle's average horsepower, torque, and highway MPG for various car makes. Each bubble’s x-position corresponds to horsepower, its y-position to torque, and its size to highway MPG, while its color uses a categorical scale from `d3.scaleOrdinal` with an interpolated Turbo palette. Data originates from the `bubblechart.csv` file, and the visualization includes interactive tooltips implemented with custom mouse events, alongside size and color legends for reference. The chart is rendered as an SVG using `d3.v7`.