hi everyoneHi,
If your discovery was stable enough to tow your caravan, the likes of an Alhambra tdi 130 will be much more stable than the Disco despite being lighter. The Alhambra is regarded as the best of it's sisters from Ford & VW as it apparently has sport suspension as standard and will give 40+ mpg solo. The Sedona is only a little better than the Disco on fuel.