Final answer:
The Penskes Used Trucks website is primarily a Business-to-Business (B2B) e-commerce website that caters to transactions between businesses, although it could potentially also serve consumers making it a Business-to-Both (B2B2C) site.
Step-by-step explanation:
The Penskes Used Trucks website is primarily a Business-to-Business (B2B) e-commerce website. This classification is based on the nature of transactions that occur on the site, which typically involve sales or exchanges between businesses rather than between a business and an individual consumer. Penske sells used commercial trucks, which are typically purchased by other businesses for commercial use. However, it is possible that they may also cater to individual consumers who are seeking to purchase used trucks for personal use, which could make it a Business-to-Both (B2B2C) e-commerce website depending on their target audience.