What year are we talking about Dave? Last XJ I drove 2006 4.2 sovereign was
really rubbish compared to the BMW 7 series in standard trim (not sport) in fact
I found it weird on the steering - Jags have always had light steering but this
one seemed to want to drive it's self or rather it was more point and aim. Very
soft ride but held the road Ok but didn't feel as stable as the BMW
There's a stretch of road near me where I bang my head on the roof of
the car several times when I drive down it.
There's more to the comfort than just the overall spring rate. The
damping has a lot to do with it too.
Someone else mentioned tyre sizes and that it is a big part of the
BMWs were always so good because they combined almost the comfort of a
Mercedes with good 'feel' and tightness, but from personal experience I
think sport suspension is a shade too far. Good fun when you want to
fling it about, and at a decent speed, but a low speeds over less than
smooth roads it's merely uncomfortable. But it's personal taste, as you
Haven't ridden in or driven an ugly boat on wheels, er, E60, so can't
comment on what those are like, but people seem to be saying they're a
BTW, an anecdote: when I took my 330xd touring to the race track, I
increased tire pressure about 15%, to lower tire temperatures (I was
certain they were going to overheat). Actually that meant, IIRC,
2.8bar and 3.1bar, front and rear (!). Well, the pressure in those
tires has NEVER been put back to its previous value, initially because
of my laziness, but also because I decided it was good for road use,
as well: my driving is quite sporty (when traffic allows me to do so),
and higher tire pressure helped to make tire wear more even (but it's
still quite uneven :-D). My parents and grandparents NEVER complained
because I told them nothing, they never noticed the difference. Had I
told them about that, they would have complained...
Back in the good ol' days of police driver training, we used to run
"bald eagles" at 100 PSI (honestly) on a flooded skidpan to learn car
Few things since then have been so much fun, at least while I had my
If you "still feel a lot of bounce", perhaps you should have the condition
of your existing suspension components checked. Have you owned the car
since 2004 and has there been a gradual deterioration of the ride and/or
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