Dacia had a 0.33% market share in Great Britain at the end of the first quarter.
Dacia, owned by French group Renault, officially launched sales in Great Britain in January this year.
The UK car market increased 8.9% in the first four months to 768,555 units and by 14.8% in April alone to 163,337 units.
The best-selling car models in Great Britain in April were Ford Fiesta, Opel Corsa and Ford Focus.
Dacia car registrations in Germany rose 6.7% in the first four months of the year to 14,609 units, while the overall German car market fell 8.5% to 958,401 units, according to German car registration office KBA.
In France, new Dacia car registrations increased 23% in January-April to 30,352 units, while the French car market shrank 12.3% to 591,741 units.
Dacia’s global sales increased 4.8% on the year to 359,822 cars in 2012.