May I ask why the XF is this wide? (78 inches?) That's bigger than most other sedans, even in the F-segment; and this car is supposed to compete in the E-segment.
(57.3x78.0x195.4)÷100 = 8733 sq.in. (Jaguar XF)
This car is bigger than the standard-wheelbase 7 Series, let alone the 5 Series.
(57.8x74.9x200.7)÷100 = 8689 sq.in. (BMW 7 Series)
(58.2x73.5x195.8)÷100 = 8376 sq.in. (BMW 5 Series)