This interactive bubble chart shows the correlation between average horsepower, torque, and highway MPG across 31 car makes, with each bubble sized by fuel efficiency and colored by manufacturer. The visualization uses D3 v7 with SVG rendering and animated tooltips that appear on mouseover to display the car make. Data from `bubblechart.csv` is mapped through `d3.scaleLinear` for axes and bubble radius, with `d3.scaleOrdinal` assigning colors via `d3.interpolateTurbo` for the legend.