Robbie (Forum Supporter) said:
Don't get an xjr for cruising. Just get the regular xj sans supercharger. Less to maintain, less to break.
Still an awesome looking and driving car.
10k buys a lot of jag but not a lot of work on a Jag. Pay more for less deferred maintenance.
I'll disagree slightly. The x308 (up to 2003 old body style) I would say definitely DO the supercharger. The supercharger has proven very reliable aside from developing a typical coolant leak underneath which is relatively easy to fix. The real benefit is that the blown versions used a mercedes 722.6x transmission which is WAY better than the ZF junk the others got.
After 2003 with the x350 iteration, you get the benefit of an all aluminum body (which is great for no rust, but insurance companies know how much it costs to repair body work in aluminum) but all of them across the line get the ZF6HP. When it fails (likely at around 60k), it is a disposable piece. I've worked with some of the finest transmission rebuilders in three states. I only knew two who would even attempt a rebuild and they could never get them right. Junk. Even Jasper doesn't do them anymore because they all end up coming back. They'll need to be replaced with a new unit ($4600) or take your chances on a junkyard unit ($2500).
Basic guidlines (verfiy this by searching jag xj on wiki). 97-earlier will be the inline 6. Not bad, but these were still the old coventry jags with all the fun foibles of a british car. 98-03 used a V8. Up until about 2000, they used Nikasil liners in the bores which sometimes got scored and burned oil/lost compression. If you find a 98-2000 that doesn't burn oil or have a misfire, it likely won't suddenly become an issue. 2001-2003 IMO is the sweet spot... well into Ford's ownership of Jag, XJRs came with the Mercedes trans, and cheap and plentiful. 2004-up is still a good bet, but I just can't bring myself to do a ZF trans. After so many years of running transmission repair shops, I just can't. I put them in the same league as Jatco. (that's a really bad thing). Trust me... if a Merc 722 transmission fails, it is bloody expensive to fix, but at least it CAN be fixed and it is far less likely to fail in the first place.
Whatever you do, don't spend $10k on anything with more than about 35k miles on it. Jags absolutely TANK in value. I passed on a 2003 XJR with 38k for $3000 because I didn't like the color. I passed on a 2003 ultra-rare, one of a handful, Super V8 (the XJR drivetrain in the super-swanky Vanden Plas body) for $3800 with 113k because the seats had some wear. Supercharged jags are that cheap and plentiful that I could be that picky. Also... whatever you do, don't trust ANYTHING the seller says. If it says "doesn't shift right, just need to clear the code," that actually means, "oh E36 M3, the ZF trans E36 M3 the bed and I want to pass the $4000 repair to someone else." If it says "bad fuel pump," it really means, "the dealer told me it would be $2500 for a new ECM and that might not fix the problem." Jag sellers tend to be some of the sneakiest liars on the planet.
Example. XJR with under 100k for $4500
Vanden Plas top of the line model with under 100k for $3900