what are specs like on the XF-R?

Here's the webseite: Jaguar UK

20" wheels
Comfort Access
Sat nav
Sport seats with adjustable width
5 litre supercharged V8 with 510bhp and 461 lb/ft torques
Combined fuel consumption of 12,5 l/100km combined
Active diff this and electronic that
1891kg kerb weight

The M5 is unfortunately, thirstier (14,6l/100km), heavier (1955kg), and has a smaller petrol tank, only 70 litres. But stats don't show everything.

wow

look at the body roll on the jag...and what is with the rollout on the 0-60?

The latest top gear episode has the Jaaaaag comparing favourably to the M5. It's as good on the road, and *nearly* as good as the M5.

The thing is, I would never really want to buy an M5 as a sports car because it's too heavy. I feel the 5er is supposed to a comfortable executive sedan, not a track burner. In setting, the XF looks to be more comfortable and easy to drive around town. The F1 heritage of the M5 is truly, and I mean really enticing, but I just want a comfortable, relaxed sedan. I see more of a point in the M3 than the M5 or worse, the M6.