The Opel Zafira 1.8 with a Lunar Zenith 4 with an actual weight of 1145 kg is in general a good match and suitable for all journeys on all kinds of roads.
The motor preformance of the Opel is in general more than 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
215
134
Mountains
Risk of snaking
219
205
Weight ratio: 66% (75% of kerbweight)
1145 kg
1728 kg
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Number of useful calculations:
3
Opel Zafira 1.8 Lunar Zenith 4
Actual Weights
Lunar Zenith 4: 1145 kg.
Opel Zafira 1.8: 1728 kg.
Noseweight: 70 kg.
Actual weight ratio: 66%.
Performance
The engine's performance is generally good on flat roads (performance score to compare 215 points).
Speeds of 73 mph (117 km/h) to 79 mph (127 km/h) are often quite possible.
There is only moderate power at low engine speeds (score to compare 134 points).
Slightly higher revs (2600 rpm) may be necessary under normal conditions on flat roads.
Acceleration from 0-62 mph (0-100 km/h) is theoretically possible in 21.2 sec.
In the mountains the performance is generally good (score to compare 219 points).
No problems are to be expected on steep mountain roads. Hill starts are possible on steep slopes up to 13%, but do require some experience from the driver.
On motorway inclines higher revs (4400 rpm) are needed.
A speed of 62 mph (100 km/h) is usually possible on most motorway inclines.
Weight
The towing limit of the Opel is sufficient (check this in your vehicle documents).
If you passed your driving test after 1 January 1997, a B driving license is enough.
Weight ratio between the laden caravan and the loaded car is 66%. Common in the UK: the weight ratio between the laden caravan and the kerbweight of the car is 75%.
The chance of snaking is small even at higher speeds.
Recommended noseweight is 70 kg.
Stability and safety score to compare is 205 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 more than sufficient.
Safe driving is possible.
It's a perfect match!
Influence of User Payload on stability
Weight distribution and noseweight are vital in obtaining a stable caravan.