A scatter plot of cars visualizing the relationship between horsepower and weight, with each car represented as a red semi-transparent circle. The data comes from the UCI Machine Learning Repository Auto MPG dataset, loaded via `d3.csv`. The visualization uses `d3.scaleLinear` for both axes, `d3.axisBottom` and `d3.axisLeft` for ticks, and `svg.append('circle')` to render points. Axis labels and a title are added using SVG text elements.