The Astra was the best-seller in June, knocking its rival, the Ford Fiesta, off top spot. In a further blow to Ford, the Corsa also leapfrogged the Fiesta into second place, making it a one-two for Vauxhall.
The latest figures from the Society of Motor Manufacturers and Traders show the Astra sold 10,525 units in June and the Corsa sold 9,642.
In comparison, the Ford sold 8,279 Fiestas and 6,895 Focus models in the same period. However, the Fiesta and Focus remain the best-selling models of the year so far, with 57.508 and 48,314 units sold respectively.
There was further cause for celebration for Vauxhall as the mid-sized Insignia moved into the top ten with 4,090 sales in June. It is now closing in on the Renault Clio in tenth place of the best-selling cars of the year so far.
The Vauxhall Zafira has retained its position as the best-selling compact MPV so far in 2010 with 15,392 sales so far, but it was the Astra which outsold models in all segments.
Duncan Aldred, Vauxhall’s Managing Director, said: "The new Astra is perceived as a premium product in its segment, but one that still offers great value for money. The fact that we’re building it in Britain is the icing on the cake.”
The Astra, built at the Ellesmere Port plant in Cheshire, is expected to continue its strong sales record once the Sports Tourer model joins the line-up later this year.
The Vauxhall Astra is currently available in estate and five-door hatchback body styles, but the Sports Tourer is expected to complete the range.
Boasting a load space of 1550 litres, the model will also be exclusively built at the Ellesmere Port facility, alongside its siblings.
It could also be joined by the Vauxhall Ampera, with a decision on where it will be built expected soon.