Roadster is a type of driving

Driving (horse)

Driving, when applied to horses, ponies, mules, or donkeys, is a broad term for hitching equines to a wagon, carriage, cart, sleigh, or other horse-drawn vehicle by means of a harness and working them in this way...

 competition for horse

Horse

The horse is one of two extant subspecies of Equus ferus, or the wild horse. It is a single-hooved mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature into the large, single-toed animal of today...

s and ponies

Pony

A pony is a small horse . Depending on context, a pony may be a horse that is under an approximate or exact height at the withers, or a small horse with a specific conformation and temperament. There are many different breeds...

 where the horse and exhibitor appear in equipment similar to that used in harness racing

Harness racing

Harness racing is a form of horse racing in which the horses race at a specific gait . They usually pull a two-wheeled cart called a sulky, although racing under saddle is also conducted in Europe.-Breeds:...

. It is derived from the historical use of certain horses hitched to light carts that traveled quickly from one place to another, often racing on ordinary dirt roads, hence the name. The term is also used to describe the horse used for such competition. Horses pull a light sulky

Sulky

A sulky is a lightweight cart having two wheels and a seat for the driver only but usually without a body, generally pulled by horses or dogs, and is used for harness races...

 and drivers wear racing silks. However, the exhibitors do not race. Instead, they perform in an arena at horse show

Horse show

A Horse show is a judged exhibition of horses and ponies. Many different horse breeds and equestrian disciplines hold competitions worldwide, from local to the international levels. Most horse shows run from one to three days, sometimes longer for major, all-breed events or national and...

s at trotting gaits

Horse gait

Horse gaits are the various ways in which a horse can move, either naturally or as a result of specialized training by humans.-Classification:...

 that include a slow jog, a medium speed "road gait," and a rapid and long-strided but controlled trot referred to as showing "at speed." Animals are evaluated on performance and manners.

This type of class is particularly popular in Shetland pony

Shetland pony

The Shetland pony is a breed of pony originating in the Shetland Isles. Shetlands range in size from a minimum height of approximately 28 inches to an official maximum height of 42 inches at the withers. Shetland ponies have heavy coats, short legs and are considered quite intelligent...

 and Morgan horse

Morgan horse

The Morgan is one of the earliest horse breeds developed in the United States. Tracing back to the stallion Figure, later named Justin Morgan after his best-known owner, the breed excels in many disciplines, and is known for its versatility....

breed shows.