The Citroen C4 Picasso 2.0 Hdi semi-aut. with a Lunar Zenith 5 with an actual weight of 1205 kg is in general a good match and suitable for all journeys on all kinds of roads.
The motor preformance of the Citroen 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
203
190
Mountains
Risk of snaking
205
207
Weight ratio: 64% (73% of kerbweight)
1205 kg
1881 kg
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The engine's performance is generally good on flat roads (performance score to compare 203 points).
Speeds of 71 mph (115 km/h) to 78 mph (125 km/h) are often quite possible.
There is sufficient power at low engine speeds (score to compare 190 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 23.8 sec.
In the mountains the performance is generally good (score to compare 205 points).
No problems are to be expected on steep mountain roads. Hill starts are possible on steep slopes up to 14%.
On motorway inclines higher revs (3100 rpm) are needed.
A speed of 60 mph (96 km/h) is usually possible on most motorway inclines.
Weight
The towing limit of the Citroen is more than 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 64%. Common in the UK: the weight ratio between the laden caravan and the kerbweight of the car is 73%.
The chance of snaking is small even at higher speeds.
Recommended noseweight is 70 kg.
Stability and safety score to compare is 207 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.