There's no one brand that stands out as the cheapest rental car company, but here's a look at how they stack up against each other, along with tips for saving.

But there are other secret ways of finding the best price. Use these 15 insider strategies to do a thorough search for the cheapest rental car possible — and maybe even score an upgrade.

Looking for an affordable car hire? Cheapest car rental companies that will give you the best value for your money.

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The cheapest and most expensive rental car companies belong to the same parent company.

The cheapest and most expensive rental car companies belong to the same parent company.

A NerdWallet analysis conducted in March tracked 360 rental car prices across eight major U.S. companies to find which had the cheapest car rentals — and which had the most expensive.

The cheapest and most expensive rental car companies belong to the same parent company.

The cheapest and most expensive rental car companies belong to the same parent company.