The premium over 2.0-litre units will be about £250. Fitted in Zafira, the 2.2 will provide 0-60mph acceleration of nine seconds and 31.7mpg combined cycle fuel economy. The seven-seater compact people carrier will also have the choice of a 100bhp 2.0-litre direct injection diesel to replace the 82bhp unit. The 2.0 DTi 16v will also be used in Vectra, giving sub-10 seconds 0-60mph sprint times.
Both Vectra and Omega will also have a 120bhp 2.2-litre DTi, which in the Omega replaces the less torquey 130bhp 2.5-litre turbodiesel. A new 2.6-litre V6 will replace the 2.5 V6 in Vectra and Omega models and the Astra Coupe will receive a new 190bhp turbo in October. Replacement diesel premiums of £200 are expected.