Try the following for PDF files
http://www.ownerinfo.jaguar.com

Hi,

the "Daimler" version of the x300 usually was equipped with traction
control. The "Executive" wasn't. Of the "Souvereigns", some had traction
control, some hadn't. If the pre-owner can't tell you, you'll have to
try it out yourself in the snow.

I, like others, found driving an x300 without t.c. in the snow isn't as
bad as expected. Lots of snow in the Austrian Alps last year, but the
cat ran smooth where "jeeps" with allweather tires got stuck on
oversnowed ice.  When the rear gets on the drift in an icy curve,
however, it is tricky to gain control again - the x300 is long AND
heavy.

The battery is located in the back of the car, so weight distribution is
a tad better than in a Mercedes or Bimmer. I usually have 20 to 30 Kg of
additional garabge in the boot, and the car feels balanced with that.
Good winter tires are a must! I use Michelin Pilot Alpin A2. They're
almost perfect, delivering maximum grip on ice and moderate amounts of
snow. On the clean Autobahn you'll get whobbly steering above 160 Km/h
or so but that shouldn't be a problem for you over there.

Kind Regards,
-flo.

The traction control switch on my XJR (dark green too, great colour) is
on the extreme right (rhd car). It might be that traction isn't
standard on yours, but that they have used the same display units for
both XJ6s and XJRs.
Snow driving can be scary, just don't put your foot down too hard.

Richard