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Car rental counter. Andrew Woodley, Alamy ©

If you believe the commercials starring tennis great John McEnroe, renting a car is as easy as striding through rows of shiny new cars, picking one and driving off. We say: You cannot be serious.

For business travelers who rent through loyalty programs, the pick-any-car-and-drive-off scenario has some substance, but for the average traveler it’s just not going to happen. But how can a consumer make sure they’re getting the best deal when renting a car? And how can they avoid some of the pitfalls -- and indeed horror stories -- that seem to go hand-in-hand with renting a car?

Here are our 10 golden rules for making renting a car as satisfactory and convenient an experience as possible.

1. Pre-book when renting a car

All the travel agents and car-rental experts we spoke to were unanimous in one thing: If you expect to show up at the airport without a pre-booked rental and get a good deal on your car, you can think again. This is especially true during busy times like weekends and holidays, when you’ll likely be in for a long wait in line as well.

“There’s tremendous advantage to booking in advance, you can do comparison shopping, go to different travel sites and individual rental sites and shop around for the best deal,” says Rike Wedding, of Car Rental Express.

If you’re really stuck, it’s often worth checking out off-site car rental locations if it’s possible to get to them from the airport. Many off-site rental firms can be reached by an airport shuttle or train connection in major metropolitan areas. Often a quick phone call to check availability is all you need, and prices are usually cheaper than on-airport operators.

2. Check insurance overlaps

Amid the extraordinary minutiae involved in car-rental insurance, it’s important to note that some drivers will already be covered by their own auto or household insurance for many of the insurance packages a rental company will try to get you to pay for. The simple solution is to check with your own insurance company before setting foot in the car rental office. This can often mean saving between $7 and $12 a day on renting a car.

While you may be covered by your own auto policy, the value of your rental may eclipse that of your personal vehicle, so make sure that you’re covered for a higher-priced vehicle if that’s the case. (Yet another reason to book in advance.) One benefit of buying insurance from the rental company is that any claim will not appear on your own auto insurance, therefore “clean-driver” or “no-claims” policy benefits will be unaffected.

“The rental company will always offer you insurance and it’s your decision as to whether you’d like to take it,” says Marie Montgomery at AAA. “It’s probably not worth it for a lot of people who think they have enough coverage, but it’s a good idea in some situations to have some basic liability coverage of their own. [It’s] always a good idea to read the fine print.“

3. Cameras aren’t just for vacation snaps

A good rule of thumb -- and particularly if using a smaller, off-brand car rental agency -- is to take pictures of the vehicle before you drive off the lot. This, of course, means that a thorough inspection of a prospective rental vehicle must be undertaken.

Even the smallest imperfection should be documented. Check wheel rims, bumpers and fenders. Look for small dings on doors or cracks in glass. Also check the interior thoroughly, looking for spills or tears on seats or floormats. Snap photos of everything and review them on your digital camera to make sure you can clearly see the preexisting damage. This can help diffuse a fraudulent claim of damage -- or an honest mistake -- by the rental car company.

Blake Fleetwood, spokesman for the American Society of Travel Agents, says some companies will be looking to get any cash they can in a tight economy. “Car companies have been hurting like airlines and hotels so they’re looking for extra charges to stick onto people,” he said. “Damage recovery has become a key profit center for auto companies.”

4. Don’t buy gas from the rental company

Gas prices, in our opinion, are high enough. But many car rental places fill up a car with gas before a consumer drives away on the proviso that a driver will return the vehicle with a full tank, or the company will fill the tank and bill the driver later. This is where consumers can get fleeced on gas markups often approaching 100 percent. Make sure to leave yourself enough time to fill up before returning the vehicle. And beware as well, of those gas stations near the airport that up their prices to take advantage of car rental customers desperate to make their flights.

“Always make sure you gas up before you return the car, they can really hose you on gas charges. Sometimes [you’ll pay] five dollars or six dollars instead of three dollars,” Fleetwood says.

5. Get group benefits

Going through a travel association or car club often gets you a better deal on renting a car. Members of organizations or motoring clubs like the AARP or AAA can glean significant savings on rental rates, often between 10 and 15 percent. Costco shoppers also may benefit from tie-up deals. Scour newspapers or the Internet for discount coupons. Packaging your rental with your airline or hotel booking may also help cut costs a little, and most major travel web sites and travel agents offer some kind of package discount.

6. Get the facts on hidden fees or charges

Make sure before driving off the lot that all charges are accounted for. Ask at the counter that all potential charges be detailed up front. Most companies carry an incremental charge for picking up your car in one location and dropping it in another, generally between $35 and $50.

But some one-way rentals between popular in-state tourist destinations -- say between Miami and Orlando in Florida -- may not incur an additional charge. Note that many rental companies offer free mileage as part of a rental package but, again, check this before leaving the counter to avoid additional per-mile charges that can reach 40 cents or more.

7. Try smaller operators

While the larger companies typically offer more choice of vehicles at cheaper prices, at certain times of the year or in some locales it’s good to check out some of the smaller independent rental companies. Smaller companies also can offer a more personalized service and more flexibility.

Wedding, whose agency represents more than 300 smaller operators, says, “If you need a car for another couple of hours beyond the official end of the day, you could probably negotiate something like that and the manager has the authority to say, ‘Fine, you have a deal.’ Small companies are interested in repeat business and a way to get it is to provide excellent customer service. They can’t advertise the way the major chains can.”

Remember, smaller companies add on hidden fees and charges just as frequently as bigger rental chains.

8. Use your cellphone to reserve a car

If you’re not near a computer, you can use a cell or smartphone to make a reservation as more travel sites seek to capitalize on new technology to make the rental experience more convenient.

Wedding said, “We’re headed toward making things easier for mobile phone users. [Alongside reserving your vehicle] if you have an agency number in your smartphone you can call from the airport make sure you have shuttle information. Our software runs 100 independent agency web sites. We’re going mobile-friendly for convenience.”

9. Upgrades are common but not automatic

Hiring a mid-range or compact car and expecting an upgrade to a larger or more loaded model is a common strategy among consumers, but it doesn’t always lead to the expected results. Around holidays, you can pretty much forget about an upgrade, but much will depend on individual circumstances. In some cases, consumers will even get downgraded to a cheaper vehicle, though without having to pay the more expensive rate.

“It’s a 50-50 situation, it really depends on the establishments. If there’s more demand for medium-priced and cheaper cars there will be upgrade. But if you go skiing in Aspen, those Suburbans are going to be highly sought after. Even if you’ve booked a four-wheel-drive you may get downgraded,” Fleetwood says.

“Try to book in advance. One trick is, if you can’t find anything available, make reservations for a couple days earlier then cancel, say you can’t make it and sometimes cars open up. I wouldn’t always recommend it, but it’s worked for me,” she says.

10. You have recourse in any dispute

Getting hit by a surprise charge on a credit card after dropping off a vehicle is a major sore point. Our advice remains to leave yourself enough time to go over any charges before leaving the rental car premises. Many major chains will inspect the car there and then and present a bill for any damage incurred during the rental period, to alleviate the anxiety of a future credit card charge.

Still, some disputes will remain. Our experts told us to make sure that car companies provide evidence and justification for every charge they make before allowing them to charge your credit card. Make sure you personally inspect the vehicle with the rental-firm worker. If you’ve taken pictures of all damage before you drove the car off the lot, you should be in the clear.

In a lingering dispute, it’s helpful to have booked through a major car chain or travel agent, who often staff whole departments to resolve such disputes. Similarly, taking out insurance through a major outlet can often grease the wheels of an unexpected claim.

Remember, as in all things, you get what you pay for.

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    • 1 Second Ago
      • 4 Months Ago
      ALAMO out of Phoenix Sky Harbor is the worst. Do not rent from them. $80.00 in additional fees and surcharges were tacked onto a 3 day rental. I took my complaint all the way to the CEO, and the coward didn't even have the plums to respond!
      • 4 Months Ago
      Check with your credit card company to see if they cover the expenses that your auto insurance does not. Some of my cards will cover the "loss of use" fee and also the difference from the depreciated payment received from the insurance company and the cost of a replacement vehicle. That can run in to the thousands. I have a couple credit cards that cover those costs when you use them for the rental. The one time I used the auto rental insurance I hit a deer, totalled the car and just swapped out with no questions or a prolonged process dealing with my insurance, credit card company etc. That was much less painless.
      • 4 Months Ago
      You can rent with a debit card as long as you show them your return ticket. I have no trouble renting from Enterprise with a debit card.
      • 4 Months Ago
      Make sure you have a credit card. No one will rent to you with debit anymore, and the few that do require a kidney for collateral.
      • 4 Months Ago
      Wow. I did try RentalcarMagic.com as Tracy suggested for my upcoming trip to New York over Christmas. They found a price a little over $225 lower than I could find at National. They do charge a fee for their search, but it was worth it. Thanks everyone for helping. I do not do this very often and I found all the different rates and options confusing.
      • 4 Months Ago
      I was 3 hours late returning a car and the overcharge was more than my daily rate. In the futurre I will pay for an extra day; it will be cheaper than hourly late charges. Costco is not cheaper than rates i get with Hotwire. I have had no problems for the 5 years I have been renting cars through them. dianeags
      • 4 Months Ago
      I travel frequently and often need to find a car rental quickly and cheaply. I know that if I do the research, I can find a pretty good rate, but I often don't have the time or patience to do it. My solution is a great web service called Rental Car Magic which has made this chore much easier and has saved me hundreds of dollars. All I do is tell them what and when I need a rental car, and they send me an email with the lowest price. As an example, I'm going to be in Orlando from 12/21 through 1/4. The lowest price I could find was over $1550 from Alamo. Rental Car Magic found me a compact vehicle at Dollar for $457 including all taxes and fees. Incredible! Thanks for the tips.
      • 4 Months Ago
      Priceline.com is great- we got a car for a week in SF for 136 bucks. Best rate from any of the companies was $336
      • 4 Months Ago
      I have been using hotwire and priceline for years. I usually wind up with hertz or avis. No hassle, and if I am a couple of hours late, no extra charge. Forget the rest.
      • 4 Months Ago
      Great tips! Thanks for sharing this.I just came across your blog today. Lots of good information here, I plan on coming back regularly. Thanks, http://www.rentaltonight.com/
      • 4 Months Ago
      Hello, we have cars to rent long term in stockport UK very good price. if you have bad credit and you can't buy a car, why not rent one. from 1 month to 24 months , you can back the car when you need,.if you want to have a look , http://www.masterrentals.co.uk, call us for every questions.
      • 4 Months Ago
      Don't rent a car at the airport - go into town or better still, take a train closer to your ultimate destination. Rates at Stamford or New Haven, as an example, can be as much as 40% less than at La Guardia. I've had a good experience with Avis, both at the Westport train station, a block from my house (I left my car at an out of state job for a periodic return home) and at the Chester England train station for a trip to North Wales. The one time I rented Enterprise, at La Guardia - they gave me a gas guzzler, even though I explicitly requested a economy car and the attendant was rude to me, unnecessarily so.
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