If you are still looking at the differences between the Berlina and Calais, there is quite a bit more that has not been mentioned. If you can find one at the right price, the Series 2 Calais is definitely the best choice for VY's.
Calais had dual zone air conditioning, meaning the driver and passenger could select their own separate temperature settings. Calais had velour finish on the lower dash and door trims. VY Series 1 and 2 Calais were quite different as GM wanted to make the Calais a sporting luxury sedan in the Series 2. The wheels on Series one Calais and Berlina were both 16's. The series 2 Calais went to 17's and as mentioned, the suspension was altered to FE 1.5 specs. Leather trim was not standard on any VY Calais but could be optioned on Berlina and Calais. The Calais came standard with reverse parking sensors, the Berlina had to be optioned with them. The Series 2 Calais also had a sports body kit, with SS style sills and lower extensions to front and rear bars. The grille on the Series 1 Berlina and Calais was basically the same, but the Calais had the fog lights and the upper grille has its top bar fitted to the bonnet. Series 2 Berlina got the Series 1 Calais fog light lower grille but kept the Series 1 Grille.
VZ Calais got the full leather as standard, plus the 190 kw Alloytec and the five speed auto. It kept all the good gear from the VY Series 2, including the sports suspension settings. Wheels are still 18's, but have a slightly different design. If the price is right, go for a VZ Calais over a VY. Even though the 190 Alloytech is not a fireball, the five speed auto makes a much nicer job of it than the four speed and the car is more responsive and nicer to drive.
