Wikipedia
B-segment
B-segment is a car classification defined by the European Commission as being larger than mini-cars in the A-segment and smaller than medium cars in the C-segment.
Typical B-segment cars include the Alfa Romeo MiTo, Citroën C3, Dacia Sandero, Ford Fiesta, Mitsubishi Space Star, Fiat Punto, Opel Corsa, Peugeot 208, Honda Fit, Hyundai i20, Renault Clio, Toyota Yaris, Kia Pride, Volkswagen Polo, Seat Ibiza, Nissan Micra, Mitsubishi Attrage, Dacia Logan, Škoda Fabia.