
Six Rental Car Company offers customers many benefits including the opportunity to earn bonus Points. You must make a reservation at Six Rental Car Company, and present your Six Reservations cards at the counter to be eligible for these benefits. This will allow you to earn bonus points on every second and third rental you make.
Earn Bonvoy Points
A Marriott Bonvoy member can book a car rental via the Marriott Bonvoy portal. When you make your reservation, you can purchase points or choose to pay with cash. This program is not available to all properties. If you want to book a car rental through Bonvoy, you should read the program's terms and conditions before booking.
NerdWallet says that Marriott Bonvoy Points are worth approximately 0.7c each. Marriott points can be transferred to over 40 airlines at a rate of three to 1. Transfer your points to other airlines and enjoy virtual experiences. The experience you select will affect the Marriott Bonvoy points value.

Earn bonus points by dining at Marriott's restaurants. Marriott Bonvoy members may earn as much as 2,000 Bonvoy Points for dining at participating restaurants. However, you must be a Marriott Bonvoy member to use the bonus. To earn points, your booking must be made through the Marriott site.
SIXT lets you rent a 2/3 day apartment for just $299
SIXT offers flexible plans for car rentals that can be tailored to your specific needs. SIXT can help find you a car that suits your needs and your budget, whether you are looking for a car to take you on a short or longer trip. In addition to flexible rental periods, SIXT share packages also save you money on gas and electricity.
Sixt accepts most major credit cards, including American Express, Visa, MasterCard, Diners Club, Discover, JCB, and Discover. Sixt does not accept pre-paid cards or VPAY cards. Any additional drivers that have a valid driving record will need to be paid separately.
When you book a Sixt car rental, you will need a valid credit card, two forms of ID, and a passport. You will need to supply the cardholder’s name and address. You can also present a valid round-trip ticket or flight itinerary. As proof of your identity, you'll need to show your passport if you travel internationally.

Get a free upgrade with SIXT
SIXT will offer a complimentary upgrade to Platinum elite class members. This program is now available in major airports as well as downtown markets. It can be combined with other benefits and offers, including Lyft Rentals. Each year you get up to six upgrade options.
You must be a regular highway warrior to qualify. SIXT's loyalty program is for you if you frequently need an upgraded vehicle. While the rewards program is a great way to get a free upgrade, it is also time-consuming and expensive up front. Sixt's website provides a form for upgrading your rental car.
SIXT's loyalty club allows you to receive an upgrade free of charge every time you rent a car. Points can be used to redeem discounts for other travel expenses. Cardholders get 15% off car rental rates, exclusive deals, as well as other benefits. SIXT Express members get a free upgrade and a 15% discount on car rental rates.