Renting keeps miles off your own car and suits long or one-way trips, while your own car wins for short loops close to home. Here is how to choose for your road trip.
Whether you should rent a car or drive your own on a road trip comes down to three things: the distance you plan to cover, your car's age and reliability, and whether the route is one-way. Rent for very long trips, an ageing car, or a one-way route. Drive your own for short, familiar loops close to home.
Your own car feels free because you have already bought it, but every mile still has a price. AAA's 2025 Your Driving Costs study puts the all-in cost of owning and running a new car at about 77 cents per mile for someone covering 15,000 miles a year, once depreciation, maintenance, tyres, insurance and fuel are counted. Around 11 cents of that is maintenance, repair and tyre wear, and depreciation alone comes to roughly $4,300 a year. Stack 2,000 miles onto your odometer over a fortnight and you have quietly spent a few hundred dollars in wear and lost resale value before a single tank of fuel. That cost is easy to ignore because the bill arrives later, as a service, a new set of tyres, or a lower trade-in price.
Renting wins when the distance or the logistics tip the balance. Three situations stand out.
Long distances. Piling thousands of miles onto an older car speeds up depreciation and raises the odds of a breakdown far from home. A rental keeps those miles off your own car and usually comes with roadside cover built in.
An ageing or unreliable car. If you would think twice about your vehicle 300 miles from your driveway, a newer rental buys peace of mind that is worth the daily rate.
One-way routes. When your trip ends in a different city, a rental lets you drop the car there instead of driving all the way back. Most major US rentals include unlimited mileage, so the distance itself is not penalised, though you will usually pay a one-way drop fee that varies by route and demand. Our guide to loop versus one-way road trips walks through how the shape of your route changes these sums.
For shorter trips and loops that start and finish near home, your own car is almost always the better call. You know exactly how it handles, your gear lives where you left it, and you skip the entire rental fee stack.
You also dodge the surcharges that catch people out. Drivers under 25 pay a young-driver fee at nearly every rental company, commonly $20 to $52 a day according to NerdWallet, which can double the price of a week's hire. A collision damage waiver can add anywhere from about $17 to $70 a day on top. Throw in a child seat, a second named driver, or an airport surcharge and the quoted headline rate climbs fast. For a weekend loop in a reliable car, none of that is worth paying.
Familiarity matters on the road too. A car you trust, with mirrors and seats already set to you, is less tiring to drive for hours than an unfamiliar rental you collected an hour ago.
Run the choice through four quick questions.
If two or more answers point to a rental, book one and keep the miles off your own car. If they do not, take your own vehicle and put the savings towards fuel, better food and a few nights in nicer places to stay. The decision is rarely about which option is cheaper in the abstract. It is about matching the car to the specific trip in front of you.
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