You've picked up your hire car, gone through all the laborious paperwork and all you want to do is be on your way. But now there'sa control you can't find on the car. Sound familiar?
This situation is more common than most of us would like to admit.
The influx of new technology and impressive features in modern cars is great. But with this comes confusion and frustration when you can't actually work any of it.
From finding reverse to opening the boot or even actually starting the car, some of the so-called simple tasks could leave you stumped. Which is what we discovered when we asked Which? staffers to confess what had bamboozled them when they'd hired a car.
Keep reading to make sure you'll know what to do - we explain how to beat the most confusing quirks found on popular hire cars.
Manufacturers like to mix it up when it comes to designing the gear stick, offering drivers a variety of ways to do exactly the same job.
By pulling the collar up, the gear stick should easily move so you can position into reverse. This is the same for most Toyota models.
Other cars might require you to push the gear shaft down before moving into reverse.
If you've opted for a more compact family car, then you might find the middle back seat is a lot smaller. Because of the reduced size, the seat belt isn't always placed in the same place as the other two.
For example, if you've rented a or a for your family holiday, make sure you look up first. The seat belt is placed on the ceiling of the car. You need to pull it down and across; click the first clasp in on the left, then pull it across your lap and click the second clasp in on the right.
If there isn't a seat belt either side or on the ceiling, then it's a four-seater and you've hired the wrong car.
No amount of holiday planning can prepare you for the moment you can't start your car.
You think you've tried everything and the next step is to re-join the long queue for the hire company to ask the person behind the desk for help.
If you're used to driving an older car, then you're more likely to be stumped. Here's what to do. Simply depress the clutch (or the brake for an automatic), turn the key and it should start. This will also work for cars with push start buttons, too.
Most modern vehicles have this quirk, so if your own car is a little long in the tooth, depressing the clutch to start is probably not second nature to you.
If you've opted for an older hire model, try jigging the steering wheel to allow the key some movement.
Other common causes could include an empty fuel tank, dead battery or a broken starter.
If you've hired a Volkswagen car, then this might be more complex than you'd hope. Unlike most cars that have an easy-to-see pull release button or handle, VW decided to conceal the handle within the emblem.
By pushing the top (and only the top) of the VW emblem inwards, it will open up a space at the bottom of the emblem which you can use as a handle to pull up the boot.
Other models have levers in the cabin of the car that you push to release the boot, or a release button underneath the boot opening.
Electronically controlled boots are popular, too. For these you will need to press a fob or a button. Look at your keys and around the driver's seat for a symbol of a boot.
If the button still doesn't work, a fuse might have gone. This is when it's time to ask for help.
Remembering what side your petrol cap is on can be tricky even for people that drive the same car every day. So hire cars must cause all kinds of confusion.
Don't panic. Have a look on your dashboard and right next to the fuel tank on the gauge there should be a small arrow that will highlight what side the fuel tank is located.
If there isn't, your guess is as good as ours - pull over safely and check before holding up other drivers in the petrol station.
There are lots of different ways to release the petrol cap in modern cars, but traditionally the lever is placed to the far right of the pedals, beside the door.
Some models release the petrol cap as soon as the doors are unlocked, so you can just push it and it will spring open. Others place the release button on the door or in the centre console.
Typically you will find the seat adjusters on the right-hand side or underneath the front of the seat - but not always.
More up-market, slightly 'posher' Mercedes models have turned the seat adjusters into buttons and moved them to the car door. Right by the handle there should be a cluster of buttons that will be in charge of positioning your seat, opening your windows and even moving your wing mirrors.
First, make sure your hire car actually has rear wipers - not all cars do. If it does, but there's no obvious way to turn them on, you might be in a VW or Mercedes.
Some models have combined the stalk's functions to not just control the main wipers and the lights, but the rear wipers too. Instead of flicking the stalk up, down or towards you, try pushing it away.
One click and this should activate the wipers. By pushing and holding, the washer fluid should also be released.
Fancy hiring a for your next holiday? Our combination of tightly controlled lab- and road-tests and extensive owner feedback means that when a car is named a Best Buy, you can be sure it's worth driving.