Just been looking at Vauxhall prices for this quarter and they are really competitive. Astra Elite Auto £349AP, Insignia SE Nav Auto £649, Astra GTC auto £149 and the Antara 4WD Exclusive auto £399 or £999 for the SE Nav version. Many auto's at NIL AP. Only car which is expensive by comparison is the Zafira. Its a pity Vauxhall dont offer a twin clutch semi auto box like Audi, Ford, BMW, Mercedes, Volvo*, Seat, Skoda, VW as their standard torque converter auto boxes are thirsty. A manual diesel (165PS) delivers 62.8 and 53.3 around town; the auto 48.7 and 35.8. On the urban cycle thats almost 50% more fuel. Or an extra £1750 over 3 years at 30k miles.
*Similar issue with Volvo who have powershift and geartronic. The former semi auto is more frugal than a manual the latter burns around 40% more fuel.