Rob and Tina have essentially given you the right advice, but hopefully the below will help you understand the issues.
Legally, there is only one weight that matters and that's the manufacturer's towing limit for your car. Calculate this by subtracting the first figure on your car's VIN plate from the second, to give (3150-1750) = 1400kg in your case. You should assume that you can't legally tow more than that. (Strictly speaking, there are circumstances in which you can, but I'll gloss over these because it's rarely sensible to do so.)
However, the problem here is that none of what the law says makes any specific reference to caravans - only to 'braked trailers'. The towing limit is based on the weight of a trailer (not a high-sided caravan) that the car can physically move from a standing hill start. It has absolutely nothing to do with what the car will comfortably cope with in normal road conditions, or whether a caravan of that weight will be stable. Bear in mind that caravans are inherently less stable than most other types of trailer (being high-sided and typically longer) as well as often being towed for longer distances and at higher speeds.
The caravanning industry recognises this, and therefore advises - but it is only advisory, and not a legal requirement - that the actual towed weight of a caravan (note: NOT necessarily the MTPLM, although in reality they'll probably be close) should not be more than the kerb weight/mass in service of the car (the two terms are used interchangably). For those new to towing, the recommendation is that the weight of the caravan should be somewhere in the region of 85% of the car's mass in service. However, it's worth noting that the recommendation really is that crude, and it's certainly not the case that a stable tow is guaranteed at 84% but that problems are inevitable at 86%, or even 90%+.
So to try and apply this advice to your car. The mass in service is not stated, but given that it's advice only we can afford to use a bit of common sense and judgement. We know from the VIN plate that the maximum permissible weight of the car when fully loaded is 1750kg, and if we assume a payload of 500kg (which is typical for a car of this size) this gives us a figure of 1250kg for mass in service, and an 85% ratio of 1063kg. You probably won't even feel the difference of an extra 37kg and could therefore comfortably round up to 1100kg, which is well within your legally permitted limit. You should have a reasonable choice of small 2 berth caravans within that weight range, particularly if you're happy to look at an older one which tend to be lighter.
Something else to bear in mind, which has nothing to do with any of what's been said above is your car's engine performance. My understanding (though I may be wrong) is that the Honda VTEC petrol engine is known for delivering the peak of its power at high revs. That's great if you want a sporty drive on a country road, but not so great if you're towing a heavy trailer. Put simply, you'll probably spend more time in lower gears with the engine revving its nuts off. That's probably not the end of the world for relatively short trips, but if you're planning, say, a long journey across Europe you might be happier with a different car (probably a diesel).
I hope this makes sense!
------------- "Don't wait for the perfect moment. Take the moment and make it perfect."
Janiceiacob please accept my apologies for giving misinformation. I forgot that the 85% guide refers to the kerbweight of the towing vehicle, not the tow limit. Again I apologise.
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Topic: Towing with a Honda Civic 1.8 petrol
via mobile 19/4/2022 at 9:06am
