Hi, Just curious how they compare: 06 XC70 vs. 06 A6 quattro wagon. The A6 is ~K more expensive than the XC70 - is such price difference justified? The criteria (that interest me most) are: 1. Reliability; 2. Safety; 3. Handling; 4. Acceleration; 5. Fuel economy; 6. Quietness; I checked Consumer Reports online, but am interested in people's opinions. Boris