Hertz - Is it possible to rend a convertible with a GPS in LAX?

I've been trying to rent a convertible WITH GPS online but was unsucessful. I've just called the French Centurion Travel Service and they were unable to find a GPS-equipped convertible in LAX. Is this normal? Or is there a way to rent such a car?

If it's not possible, I'll probably rent a cat. D with GPS... What upgrade can I hope for, being a Hertz#1 Gold member (with Centurion CDP)?

Thanks in advance for your help!

A4 Cabriolet, and don't know if the Corvette has N/L or not.

Where can I find that option on their website?

Well N/L (neverlost) is Hertz's GPS, and all prestige cars come with it, such as the A4 Cabriolet; I expect the Corvette (hard top comes off, making it a convertible) to have the N/L too considering the ridiculous rate you get charged for it and should also be considered a prestige vehicle, imo.

So basically just choose a prestige convertible and voila, you get the GPS included.

I had a Corvette out of SFO a few weeks ago -- it had Neverlost. ^