Buy Antara 150 HP Diesel

Moin, my wife is interested in the Antara. Then in January 2007, if one becomes, a 150 hp diesel in Cosmo-equipment with Cosmo-package. The car has then quite full equipment, but the list price is for such a Korean nevertheless quite happy (were sometimes 70.000,00 DM !) before I run up to the dealer, the following question: Has someone ever entered into closer negotiations ? How many percentage points are in it, or is one locked because of “new car / strong N In addition, you buy quite “blind”, since I know only photos so far. When are the first copies in Natura? Why did Opel not take the 2.8 liter diesel from VM (e.g. from the Cherokee) ? Is the 2.0 liter a complete new development ? Thanks for the help