X351 Comfort level

Having bought the last of the X351 XJL ,AWD, I am surprised that the seats do not seem as comfortable as our old X351 . Have tried many positions and so far , only rate the comfort level about 5 out of 10 .
A bit disapointing to say the least . Also would have preferred the 5 Litre V8 , but was not available in Canada .
Kim R.
XJL Portfolio V6 Supercharged
XK Convertible 5 Litre