The Isuzu Rodeo Pickup DC - 3.0 TD aut. with a Lunar Chateau 500 with an actual weight of 1320 kg is in general a good match and suitable for journeys on most kinds of roads, sometimes with some limitations in the mountains.
The motor preformance of the Isuzu is in general sufficient. And also the weight of the Lunar with a normally distributed User Payload (200 kg in the caravan and 200 kg in the car including passengers), is very good.
Flat roads
Towing Performance
163
172
Mountains
Risk of snaking
119
218
Weight ratio: 60% (66% of kerbweight)
1320 kg
2190 kg
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The engine's performance is generally fairly good on flat roads (performance score to compare 163 points).
Speeds of 65 mph (105 km/h) to 74 mph (120 km/h) are often quite possible.
There is sufficient power at low engine speeds (score to compare 172 points).
Slightly higher revs (1800 rpm) may be necessary under normal conditions on flat roads.
Acceleration from 0-62 mph (0-100 km/h) is theoretically possible in 30 sec.
In the mountains the performance is generally sufficient (score to compare 119 points).
No problems are to be expected on steep mountain roads. Hill starts are possible on steep slopes up to 12%.
On motorway inclines the speed drops despite high revs.
A speed of 50 mph (80 km/h) is usually possible on most motorway inclines.
Weight
The towing limit of the Isuzu is more than sufficient (check this in your vehicle documents).
If you passed your driving test after 1 January 1997, you will need a B+E (or B96) driving license.
Weight ratio between the laden caravan and the loaded car is 60%. Common in the UK: the weight ratio between the laden caravan and the kerbweight of the car is 66%.
The chance of snaking is small even at higher speeds.
Recommended noseweight is 75 kg.
Stability and safety score to compare is 218 points.
If the caravan starts to snake you should reduce your speed and slow down directly! Lift your feet off the accelerator and brake gradually. Hold the steering wheel into a fixed position.
Conclusion
Performance is sufficient.
Safe driving is possible.
It's a good match, sometimes with some limitations in the mountains.
Influence of User Payload on stability
Weight distribution and noseweight are vital in obtaining a stable caravan.