Why book with CarRentalSavers.com? Save on average 10% vs Hotwire, and 30% vs Expedia. No booking fees, cancel anytime, rental issue support!

Why book with CarRentalSavers?

Save on average 30% vs Expedia
Over $30 Million saved and 6 Million Served
Free Cancellation, No Credit Card to book
Car Rental Coupons & Discounts built in
Multiple 5 ⭐⭐⭐⭐⭐ Reviews
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Free Car Rental Upgrades

Get a free upgrade on your next car rental courtesy of Car Rental Savers!

Try our Smart Book - car rental upgrade coupons and discounts built in to save you time and money!
Learn More about our discounted car rental search.

Note: Please print out free car rental upgrade coupons where links are provided.
Upgrades are not guaranteed and are based on availability and may have other restrictions.



Thrifty car rental free upgrade, get a free one class upgrade on economy thru full size plus small SUV's through 12/31/22.

Use Thrifty Free upgrade coupon from Smart Book for a one class upgrade at Thrifty! Good on an Economy through Full Size Car plus Small SUV's. Valid through 12/31/22.

Budget car upgrade, get up to 35% off your next rental plus a one class upgrade on mid size thru full size.

Use Budget coupon code from Smart Book for a one class upgrade at Budget! Good on a Mid Size through Full Size Car. Valid through 12/31/22.

Avis car upgrade, get up to 35% off your next rental plus a one class upgrade on mid size thru full size by 12/31/22.

Use Avis coupon code from Smart Book for a one class upgrade at Avis! Good on an intermediate thru Full Size with Saturday night keep required. Valid for rental pickup by 12/31/22.

How to get a Free Car Rental Upgrade:

Enter your times and dates in Smart Book and free upgrade coupons will be automatically applied.

Tip - most upgrade coupons only apply to Compact through Full Size Cars although some upgrade coupons will let you upgrade a Full Size Car to Premium.

Alamo upgrade coupons and National upgrade coupons need to be selected from the drop down boxes

Upgrade coupons are applied at the counter if upgrades are available. To verify coupon has been applied, review reservation at rental site with agency confirmation number less any text.

Selecting Manager's Special may result in an upgrade. Vehicle provided will be at a minimum a 4 door compact car but may be larger depending on availabiliy.