Start with what the GT by Citroen is: a Two seater, mid-engined coupé with 778 bhp x4 hydrogen fuel cell, from Peugeot. What it meant takes a little longer. The shape is credited to Takumi Yamamoto.
How it came about
The GT by Citroën (sometimes spelled GTbyCitroën) is a sports car that debuted as a concept car on October 2 at the 2008 Paris Motor Show. The car is a collaboration between the French automaker Citroën and the Japanese racing simulation developer Polyphony Digital. Six cars were expected to be built, with an expected MSRP of $2,100,000; however, the production run was allegedly cancelled in 2010 due to high costs.
The hardware
The engine is 778 bhp x4 hydrogen fuel cell; other versions carried different engines, listed in the specification table below. On the scales it comes to 1400 kg. Drive goes through a 7-speed "circle" sequential gearbox. The layout matters: drive goes to all four wheels, which is what lets the power be used on a wet road. The wheelbase is 2810 mm. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Family and rivals
Its Peugeot stablemates include the Peugeot Onyx and the Peugeot Pars.