NiallOswald:The XF concept with the similar front-end looked so, so much better than the final production version. I guess there must have been good economic or technical reasons for changing it
You're right, I believe much of the front end design of the XF would have been defined by pedestrian impact regulations, along with crash regulations and the fact that some of the platform comes from the S-type (for cost reasons). These problems could have been overcome, but as with all things in life it would have taken money.
I think the boxter rivalling XE is long, long, long overdue. The Boxter came in back in 1996 and porsche have been making money hand over fist from their little roadster ever since. For the first 9 years of production it didn't have a single rival in the premium sports-roadster segment (no, the Z3 and SLK don't count), it was one of the most profitable cars on sale and had a huge global market all to itself. Jaguar must have been mad not to grab a piece of the pie when the canned the F-type in 2000. Now they are finally entering the market they have to compete with the Z4, the much improved Mk2 SLK, the 350Z roadster as well as an improved Boxter, a much more difficult task.