From memory, the lumbar adjustment is an add-on to the 10 *10. I think it is rated as an extra 4 adjustments per seat - support up/down and cushion inflate/deflate. That's how it is counted on my Series 1 BMW and I can't imagine Jaguar wanting to be less "creative" than the opposition. However, when they are talking electrically adjusted seats, I don't see how they can include manual adjustment of the headrest- Trade Descriptions and all that ! I seem to remember someone in the Forum mentioning that the cushion extension is electric too, as is the steering wheel height and extension, but how this all fits into the the 14* 14 description I fail to understand. As ever, I'm sure the information is out there somewhere but finding a rational description of it is another matter.