Americans tend to like their personal transportation to be big. After all, the best-selling vehicle in the U.S. is the full-size Ford F 0.00%↑ F-150 pickup truck, followed not far behind by equivalents from General Motors GM 0.00%↑ and Ram, made by Stellantis STLA 0.00%↑. And they are willing to spend — the average selling price for a new light vehicle in …