This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various car makes, sourced from CSV data. Each circle's position is determined by horsepower on the x-axis and torque on the y-axis, while its size encodes fuel efficiency. The visualization uses d3.scaleLinear for axes and bubble scaling, d3.scaleOrdinal with interpolateTurbo for color mapping, and d3.axisBottom and d3.axisLeft for tick marks. A tooltip, implemented with D3 selections, reveals the car make on hover, and a legend clarifies both MPG values and categorical color assignments.