Question: Pro Street cars are built similar to what class of car that is described as "all motor"?

full_context: Document 1: Drag Pack: Drag Pack was Ford Motor Company's marketing name for an option package available in the United States for some of its car models that included a remote mounted oil cooler and higher ratio rear axle gear (plus engine components on some models). This option is printed on the factory invoice as Drag Pack, Super Drag Pack, Drag Pak, or Super Drag Pak (the spelling "Pak" was used by the Lincoln/Mercury division of Ford). The only known exception is a factory equipped Boss 302 Mustang with the Drag Pack option, which was not marketed by Ford as such, or by any other name.
Document 2: American Stock Car Challenge: American Stock Car Racing (ASC Racing) provides a venue for late model stock cars similar to those used in NASCAR, Southwest Tour, Grand National, ASA and other series to compete on road courses in the United States. The series was designed to bring the speed and passion of stock car racing to a level where drivers and teams without large budgets can afford to field competitive cars.
Document 3: Open-wheel car: An open-wheel car (formula car, or often single-seater car in British English) is a car with the wheels outside the car's main body, and usually having only one seat. Open-wheel cars contrast with street cars, sports cars, stock cars, and touring cars, which have their wheels below the body or inside fenders. Open-wheel cars are usually built specifically for racing, frequently with a higher degree of technological sophistication than in other forms of motor sport. Open-wheel street cars, such as the Ariel Atom, are very scarce as they are often impractical for everyday use.
Document 4: Trans-Am production cars: Trans-Am production cars were factory-built pony cars based on vehicles raced in the Sports Car Club of America Trans-Am Series. These cars were used largely for homologation purposes, but also as promotional tools for the series. The first Trans-Am street car was Chevrolet's Z/28 Camaro, which entered production in 1967. By 1970 six makes were producing street cars based on their racing vehicles. Due to their low production numbers and high performance, these vehicles are highly collectible today.
Document 5: Pimpmobile: A pimpmobile is a large luxury vehicle, usually a 1960s, '70s or '80s-model Lincoln, Cadillac, Buick or Chrysler vehicle, that has been customized in a garish, extravagant and kitsch or campy style. The style is largely an American phenomenon. Aftermarket features or modifications such as headlight covers, hood ornaments, expensive stereo systems, unusual paint colors, and shag carpet interiors were used by car owners to advertise their wealth and importance. Once considered a pejorative, these customized vehicles were popular with pimps, drug dealers, and gang leaders in the ghettos of large cities of the United States in the late 1960s, 1970s and 1980s, especially New York City, Kansas City, Chicago, Oakland and Los Angeles as a symbol of their wealth and power. By the 1990s and 2000s, pimpmobiles included any large, extravagantly customized vehicle, such as a customized SUV truck.
Document 6: Turbocharged petrol engines: Turbochargers are commonly used in passenger cars to obtain greater power output from a given engine size. The compact nature of a turbocharger means it is often a more space-efficient solution for increasing power output than increasing engine displacement. As an example, the turbo Porsche 944's acceleration performance was very similar to that of the larger-engine naturally aspirated Porsche 928. Although turbocharging is less responsive than supercharging, turbocharging is generally considered more efficient than supercharging. New techniques such as twin-turbo/biturbo (whether parallel or sequential) setups and twin-scroll turbocharger, in combination with technologies such as variable valve timing and direct fuel injection, have cut down on turbo lag.
Document 7: Street Customs: Street Customs was a reality series about West Coast Customs that aired on TLC and Discovery Channel. After season 3, the program was renamed "Inside West Coast Customs" and moved to Discovery HD Theater/Velocity in 2010, with five more seasons (as of September 2015) (the name changed yet again after 3 seasons of "Inside" to simply "West Coast Customs").
Document 8: Funny Car: Funny Car is a type of drag racing vehicle and a specific racing class in organized drag racing. In the United States, the other professional drag racing classes are Top Fuel, Pro Modified, Pro Stock, and Pro Stock Bike. Funny cars are characterized by having tilt-up fiberglass or carbon fiber automotive bodies over a custom fabricated chassis, giving them an appearance vaguely approximating manufacturers' showroom models. They also have the engine placed in front of the driver, as opposed to dragsters, which place it behind the driver.
Document 9: Stock car racing: Stock car racing is a form of automobile racing found mainly and most prominently in the United States and Canada, with Australia, New Zealand and Brazil also having forms of stock car auto racing. Traditionally, races are run on oval tracks measuring approximately 0.25 to . The world's largest governing body for stock car racing is the American NASCAR, and its Monster Energy NASCAR Cup Series is the premier top level series of professional stock car racing. Top level races typically range between 200 to in length.
Document 10: Street-legal vehicle: Street legal or road going refers to a vehicle such as an automobile, motorcycle, or light truck that is equipped and licensed for use on public roads, being therefore roadworthy. This will require specific configurations of lighting, signal lights, and safety equipment. Some specialty vehicles that will not be operated on roads therefore do not need all the features of a street-legal vehicle; examples are a vehicle used only off-road (such as a sandrail) that is trailered to its off-road operating area, and a race car that is used only on closed race tracks and therefore does not need all the features of a street-legal vehicle. As well as motor vehicles, the street-legal distinction applies in some jurisdictions to track bicycles that lack street-legal brakes and lights. Street legality rules can even affect race car helmets, which possess visual fields too narrow for use on an open road without the risk of missing a fast-moving vehicle.
Document 11: Muscle car: Muscle car is an American term used to refer to a variety of high-performance automobiles. The "Merriam-Webster" dictionary defines muscle cars as "any of a group of American-made 2-door sports cars with powerful engines designed for high-performance driving." A large V8 engine is fitted in a 2-door, rear wheel drive, family-style compact, mid-size or full-size car designed for four or more passengers. Sold at an affordable price, muscle cars are intended for street use and occasional drag racing. They are distinct from two-seat sports cars and expensive 2+2 GTs intended for high-speed touring and road racing.
Document 12: Hot Rod (magazine): Hot Rod is a monthly American car magazine devoted to hot rodding, drag racing, and muscle cars — modifying automobiles for performance and appearance.
Document 13: Pro Street: Pro Street is a style of street-legal custom car popular in the 1980s, usually built to imitate a Pro Stock class race car. Pro Street cars should appear to be more at home on the drag strip than the street, while remaining street legal and not gutted like a Race Car or Bracket Race car. Typically called a Backhalf car (tubbed).
Document 14: Pro Stock: Pro Stock is a class of drag racing featuring "factory hot rods". The class is often described as "all motor", due to the cars not using any form of forced induction such as turbocharging or supercharging, or other enhancements, like nitrous oxide, along with regulations governing the modifications allowed to the engines and the types of bodies used.
Document 15: Aero-engined car: An aero-engined car is an automobile powered by an engine designed for aircraft use. Most such cars have been built for racing, and many have attempted to set world land speed records. While the practice of fitting cars with aircraft engines predates World War I by a few years, it was most popular in the interwar period between the world wars when military-surplus aircraft engines were readily available and used to power numerous high-performance racing cars. Initially powered by piston aircraft engines, a number of post-World War II aero-engined cars have been powered by aviation turbine and jet engines instead. Piston-engined, turbine-engined, and jet-engined cars have all set world land speed records. There have also been some non-racing automotive applications for aircraft engines, including production vehicles such as the Tucker 48 and prototypes such as the Chrysler Turbine Car, Fiat Turbina, and General Motors Firebirds. In the late 20th century and into the 21st century, there has also been a revival of interest in piston-powered aero-engined racing cars.
ground_truth: Pro Stock