The XF didn't just beat cars from its own class, it beat the best buys among executive sedans in higher and lower price brackets. The other challengers were the best sedan buy under £30,000 (around $42k USD), the BMW 520d SE, and the best buy over £35,000 (around $49k USD), the Mercedes Benz CLS 320 CDI. The Jag walked it for being "beautiful to look at, brilliant to drive, an event to be in, and worth every penny of its running costs." Which means that if the 2.7-liter could take the award two years in a row, with the new 3.0-liter coming on line this year the XF might be a good bet for the trifecta come 2010.
[Source: What Car?]