A two-wheeled horse-drawn vehicle is a cart (see various types below, both for carrying people and for goods). Four-wheeled vehicles have many names – one for heavy loads is most commonly called a wagon. Very light carts and wagons can also be pulled by donkeys (much smaller than horses), ponies or mules.
Wood and iron were the primary requirements needed to build a carriage and carriages that were used by non-royalty were covered by plain leather. Another form of carriage was the pageant wagon of the 14th century.
Noun. (plural horses and carts) (dated) A cart, pulled by a horse and driven by a driver, used for transporting goods.
Making horses pull oversized loads like carriages is cruel. Horses are forced to toil in all weather extremes, dodge traffic, and pound the pavement all day long. They may develop respiratory ailments because they breathe in exhaust fumes, and they can suffer debilitating leg problems from walking on hard surfaces.
A trap, pony trap (sometimes pony and trap) or horse trap is a light, often sporty, two-wheeled or sometimes four-wheeled horse- or pony-drawn carriage, usually accommodating two to four persons in various seating arrangements, such as face-to-face or back-to-back.
15 miles per hour
Short answer: In the US, between 1920 and 1939, depending on the area. It took about 23 years to fully replace the cheap buggy, starting from when the Model T was made in volume in 1916, to the end of the Great Depression in 1939, (which had hurt new car sales and gas sales).