Find out more about the pros and cons of multi-car policies and whether you might be better off comparing separate policies instead.
Multi-car insurance policies are heavily advertised by car insurance firms and can seem like an attractive and convenient way of arranging cover for you and those close to you.
Logic would seem to tell us that buying more than one policy from a single provider would lead to some sort of preferential treatment and a discount.
Insurers are keen to highlight the latter aspect and may offer extra discounts for each additional car that's put on a policy.
You may also be able to choose different cover and excess levels for different vehicles, and some policies allow you to include vans as well as cars.
But it's important to note that the pros and cons of multi-car insurance are not necessarily as straightforward as they initially appear.
Depending on your unique circumstances, a multi-car deal isn't necessarily a cheaper way to take out cover than arranging multiple individual policies, and there are a number of other things you should take into account before committing.
Above all else, it's important to remember that the terms and conditions of every provider's cover will vary significantly.
A multi-car policy can cover two or more vehicles, but the number will be capped at a specific limit.
When this article was researched in October 2015, the majority of providers would cover between two and five vehicles.
Other providers can add more vehicles to a multi-car policy; Churchill, for example, could offer a policy for 10 cars in October 2015.
Again this will vary between insurers, but definitions of those eligible for a multi-car policy tend to be a household and/or a family. This means that there's the potential to cover a wide range of circumstances.
Some insurers will, for example, cover a couple who each have their own car but who live at different addresses.
They may also be able to offer options for families who have car-owning children living away from home at university - read more about student car insurance in our guide.
Unfortunately there's no single answer as to whether a multi-car policy will prove cheaper than taking out individual policies for each vehicle.
Some people will save money one way, some the other, depending on the large number of factors used to calculate an insurance quote, each of which is assessed and rated differently by each different insurance provider.
The only real way to tell is to obtain individual quotes - which you can do quickly and easily through a site such as Gocompare.com - then compare the total price to a quote for a multi-car policy.
You may also want to get more than one multi-car quote, given the fact that the deals offered by every individual provider will vary significantly.
If a multi-car policy is the cheapest and best way for you to arrange your cover in one year, remember that this won't necessarily be the case when it comes to renewal.
Providers are likely to be keen to push the benefits of the ease and convenience of renewing all your motor insurance in one go, but auto-renewal without shopping around is one of the most costly mistakes made by consumers when sorting out their cover.
"Loyalty counts for very little when it comes to insurance," said Gocompare.com's Lee Griffin. "Many drivers would be better off switching rather than sticking with the same insurer."
The more complicated nature of multi-car policies - and the fact that the terms of the policies offered by different insurers varies so widely - means that you may struggle to find a genuine comparison service available for them.
This is one reason why insurers like to push multi-car policies; it's a way of attracting customers directly to a provider rather than through a third-party comparison site.
If you do find a multi-car option on a comparison website, bear in mind that it's probably a policy that's offered by a single provider - you're not comparing it against other multi-car policy options in the market.
As an alternative, remember that you can compare and buy multiple individual car insurance policies through Gocompare.com.
The complicated world of no claims bonuses and discounts is worth keeping in mind if you're considering a multi-car policy.
Depending on the terms and conditions, an incident-free driver on a multi-driver policy may lose out because of a claim made by someone else.
What's more, there may be problems transferring a no claims bonus accrued on a multi-car policy if you choose to change provider - or switch to a single-vehicle policy - in the future.
Remember also that different companies will treat renewal dates in their own way.
Some will allow each individual policy within the multi-car deal to run and renew on its own timescale, others will demand that each individual policy renews at the same time. The latter example could potentially see you losing out on months of cover from an existing policy in order to synchronise all the vehicles into a multi-car deal.
It's worth being aware of the administration charges associated with the policy, especially given the fact that multiple people and vehicles increases the likelihood of changes needing to be made in the course of the deal. Potential changes to bear in mind could include a change of address or of vehicle.