I did a price comparison between getting a quote "as guest" and logging in, and surprise surprise, I got a slightly more expensive quote after I logged into my Hertz Gold account. Both quotes are using the same CDP, dates, pick-up location, etc. This is for a rental in Sydney via hertz.com (I found the prices on hertz.com.au are even more expensive, by at least AUD10-20...).
Before logging in:
Toyota Corolla Hatch, CCAR
Compact Auto - Toyota Corolla or similar
Discounts
CDP: MASTERCARD PREMIUM
Payment Method Pay Later
Rate Details
1 day at 48.60 AUD 48.60 AUD
LOCATION FEE 14.60 AUD
Vehicle registration recovery 6.50 AUD
Admin Recovery 1.70 AUD
Taxes 7.14 AUD
Included
Unlimited Free Kilometers Included
Vehicle Subtotal 78.54 AUD
Total Approximate Charge 78.54 AUD
After logging in:
Toyota Corolla Hatch, CCAR
Compact Auto - Toyota Corolla or similar
Payment Method Pay Later
Discounts
CDP Name : MASTERCARD PREMIUM
CDP Rate : Your Rate has been discounted based on the Hertz CDP provided
Rate Details
1 day at 49.46 AUD 49.46 AUD
LOCATION FEE 14.83 AUD
Vehicle registration recovery 6.50 AUD
Admin Recovery 1.73 AUD
Included
Unlimited Free Kilometers Included
Vehicle Subtotal 72.52 AUD
Taxes 7.25 AUD
Total Approximate Charge 79.77 AUD
Yes, the difference is small (~AUD1.20), but how can it be more expensive just because I logged into my account?