This visualization displays the relationship between automobile fuel efficiency (mpg) and horsepower, with points colored by country of origin and sized by vehicle weight. Built with the Vega-Lite API and rendered as an interactive SVG, it loads the Auto MPG dataset from the UCI Machine Learning Repository via a CSV file. The code uses vl.markCircle and vl.encode for the scatter plot, with a tooltip handler from vega-tooltip to show car model names on hover.