and the 85% Guideline
you'll hear about is the UK 85% guideline for caravan matching.
This has no legal standing and it's certainly NOT a rule whatever
others may tell you, but it is a useful guideline to stability and
a happy towing experience.
The idea is
that read your car handbook for the kerb-weight as defined by the
EU MiRO directive (it is also printed on
your car V5 "logbook"), and also look up the caravan MTPLM.
Then calculate the ratio as follows:
Ratio = 100
x (caravan MTPLM) / (car kerb-weight)
And if this
number is around 85% or lower, and providing you set the nose-weight
correctly, then you shouldn't have any issues towing that caravan.
and the 75% Guideline
So what's this?
Sounds like the same calculation - and it almost is - years ago
the Dutch Caravan Club (NCC) researched the subject of caravan safety
and stability, and came up with a similar ratio calculation only
this time they used the actual weight of the car and the actual
weight of the caravan:
NCC Ratio =
100 x (actual caravan weight) / (actual car weight)
The NCC suggested
stability guideline is now 75% or less, it's lower than the 85%
recommendation becase the ratio is less favourable in this case.
So why do we
mention this? Two very good reasons:
1. The NCC 75%
ratio is a measure of the real stability of your car and caravan
as you drive it, rather than the extreme limit condition from the
2. The NCC 75%
ratio is used by the WhatTowCar
web-site when it advises you on a match - and not the UK calculation
- and for this reason alone it's very important to understand the