How do automobiles travel through the Channel Tunnel?

Automobiles travel through the Channel Tunnel by being loaded onto specialized, fully enclosed, double-deck railcars known as auto transporter trains.12

These trains operate as a shuttle service between terminals located at Folkestone, England, and near Calais, France. Passengers remain with their vehicles during the transit, which takes approximately 35 minutes. The railcars are designed with sufficient width to allow passengers to dismount their vehicles to access onboard amenities, such as toilets or buffets, while the train is in motion. Separate single-deck transporter cars are utilized for buses and trucks.132