Question: What FIA drag racing class is similar to the Australian Top Doorslammer clas?
Context: Pro Stock Motorcycle, formerly known as Pro Stock Bike is a drag racing class that is the two-wheeled equivalent of Pro Stock.  It has been a feature of NHRA drag racing since the 1980s when it was added to the professional class structure and has since spread around the globe.  Their 1st Points Championship Season took place in the 1987 NHRA Season.  The class has for years been dominated by inline-4 cylinder Suzuki based bikes but in recent years Harley-Davidson based V-twin machines have become more competitive due to favorable rule changes (160 c.i. Harley's vs. 107 c.i Suzuki's, electronic fuel injection on Harley's vs. carburetors for Suzuki.  Frames are purpose-built specifically for drag racing and are not based on their road-going counterparts. Victor Bray is an Australian drag racing competitor in the Top Doorslammer class of racing.  He drives a 1957 Chevy. ANDRA Pro Series is the Six Group 1 classes representing the pinnacle of Australian National Drag Racing Association (ANDRA) Championship Drag Racing these include Top Fuel, Top Doorslammer, Top Alcohol, Top Bike, Pro Stock and Pro Stock Motorcycle.  They compete across the country at venues in Western Australia, New South Wales and Queensland culminating at the championship finals at Willowbank Raceway at Ipswich in Queensland traditionally over the Queen's birthday long weekend in June. Top Doorslammer is a professional (Pro) class of Australian drag racing.  It caters to full-bodied racing sedans which are replicas of Australian or US production vehicles.  The class uses 514 cu.  in.  displacement (8.5 litre), mechanically supercharged V8 engines which are fueled by methanol.  The minimum weight break for these vehicles is 2700 lbs (1225 kg).  It is similar to the Pro Modified class as defined by the NHRA. Ray Price (June 25, 1937 – December 16, 2015) was an American motorcycle drag racer and is credited as the “Father of the Funnybike".  He was also a renowned designer, engineer and the first drag racer to be sponsored by Harley-Davidson.  He also developed the first wheelie bar, and the two-speed automatic racing transmission for drag racing motorcycles.  This was the first transmission that enabled the first motorcycle to ever achieve 200 mph and has now become standard in the sport.  Price also created the Pro Fuel drag racing class.  Price is an inducted member of five halls of fame including the American Motorcycle Association Hall of Fame, Sturgis Motorcycle Hall of Fame, the North Carolina Sport Hall of Fame, and the North Carolina Drag Racing Hall of Fame. 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. Santa Pod Raceway, located in Podington, Bedfordshire, England, is Europe's first permanent drag racing venue.  It was built on a disused Second World War air base, (RAF Podington), once used by the 92nd Bomber Group.  The drag racing venue opened at Easter in 1966, and it is now the home of European drag racing and has grown substantially over its 51-year existence.  It hosts both the first and last round of the FIA and FIM/UEM European Drag Racing Championship, along with the British National Drag Racing Championships. Willowbank Raceway is a drag racing facility in Queensland, Australia.  It is located approximately 30 – 45 minutes drive west of Brisbane.  It is part of the Ipswich Motorsport Precinct, which includes a kart racing track; Ipswich Sprint Racing Circuit, a short circuit dirt racetrack; Ipswich Motor Sport Complex and bitumen racetrack Queensland Raceway.  Since the closing of Surfers Paradise International Raceway following the 1987 Winternationals, the popular event, one of the largest drag racing festivals in the southern hemisphere, moved to the circuit in 1988.  Between the end of Calder Park Raceway's top level drag racing career and the opening of Western Sydney International Dragway, it also hosted the Australian Drag Racing Nationals. Drag boat racing is a form of drag racing which takes place on water rather than land.  As with land-based drag racing, competitors race their vehicles for the lowest elapsed time (low ET) over a straight race course of a defined length.  There are three standard drag race course lengths, 660 feet (1/8 mile), 1,320 foot (1/4 mile), and the most common length, used in professional drag boat racing, 1,000 feet (3/16 mile plus 10 feet).  Unlike drag racing on land, which begins from a standing start, drag boat racing begins from a short rolling start to a point that cannot be passed until the green "start" light illuminates.  There are numerous categories of professional and sportsmen classes based on various engine configuration, fuel type, hull design and propulsion types.  The premier category of drag boat racing being the Top Fuel Hydroplane class which is the water based equivalent to Top Fuel Dragsters capable of covering the liquid quarter mile in less than four seconds with a top speed of around 260 mph (400 km/h).  The biggest event on the drag boat calendar is the LODBRS World Finals which takes place at Firebird Raceway Phoenix, Arizona. Pro Modified, also known as Pro Mod, is a class or division in the sport of drag racing used in the NHRA and FIA (quarter-mile) and the Professional Drag Racers Association (PDRA) (eighth-mile).  It is similar to the Top Doorslammer class as defined by the ANDRA.
Answer: Pro Modified