45 Which Japanese car company began life as a cork manufacturer?
46 Rikky von Opel is to date the only Formula 1 driver to represent which country?
47 Lewis Hamilton set a new all-time Formula 1 win record this year, but in which grand prix has he scored the most wins?
48 By comparison, which driver holds the record for the most Formula 1 races started without scoring a win?
49 Which car manufacturer boss regularly competes in the Nürburgring 24 Hours using the pseudonym Morizo?
50 Which vehicle is nicknamed the pão de forma in Portugal, because of its apparent resemblance to a loaf of bread?
Answers to the Christmas quiz
5 Monte Carlo (Monaco) and Monza (Italy)
6 GM EV1
9 BMW Isetta
11 Potash Lane
13 To celebrate the repeal of the law requiring a man waving a red flag to walk in front of cars
16 Toyota, Ford and Holden (General Motors)
17 Bohemia (part of Austria-Hungary)
19 F1 bosses learned he was backed by drug lord Pablo Escobar (but officially because he crashed into Keke Rosberg in practice)