This video is from last year, but it covers a range of interesting topics and technologies, including some hard numbers around chassis weight progression, euro/us greenhouse requirements, and Jaguar's multi-year strategy around weight reductions.

so while the f-type is heavier than many would like, Jaguar is likely to keep slimming its cars going forward even as westerners get more obese (the anecdote in the talk is pretty funny).

http://m.youtube.com/watch?v=UqX4Gbx6-BE