Which used Jeep Grand Cherokee 4x4 should I buy?
Because this is a genuine off-roader, a diesel engine is the obvious choice. However, the only diesel worth considering - the 2.7-litre unit from Mercedes - didn't arrive until the end of the 2001. It's far better than the thirsty, unrefined 3.1-litre unit that it replaced.
On older cars, you're better off with the 4.0-litre petrol engine. Not only is it better than the diesel, it's also cheaper to buy, although you may be put off by the fact that you'll struggle to manage 20mpg. Even so, it's good enough to make the 4.7 V8 seem a pointless expense.