Are you in the market for a new car? Here’s a little-known travel hack that might get you your next car the next time you’re traveling.

Consider this: Most major rental car companies sell their fleet vehicles at prices that range from 10% to 20% lower than car dealerships charge for similar pre-owned vehicles. And most of the time, they average only one year and the mileage is under 20,000.

Each of these car rental companies offer deals where you can rent the car you’re interested in — as you would rent any other car, usually at a reduced rental rate, for an extended test drive. You go online, pick the car, make and model you want, and then rent it.

At some rental companies, the rental/purchase option can be in the form of complimentary two hour test drive, and with Hertz the deal is even better — you can rent the car for up to three days. And this Hertz program is available in 100 U.S. cities.

All the rental companies offer guarantees on the vehicles, and some offer a seven day buy-back guarantee if you end up not liking the car and returning it. And on the Hertz program, 80 per cent of the travelers who did their Rent2Buy program ended up purchasing the cars.