This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for 31 car makes. Each circle’s position maps to horsepower (x-axis) and torque (y-axis), while its radius encodes highway MPG and its color distinguishes car make, revealing trends like high-performance brands clustering at higher horsepower and torque with lower fuel efficiency. The visualization uses d3.v7 to load CSV data and render an SVG with animated circle transitions, hover tooltips showing the car make, and legends for both bubble size (MPG) and categorical color.