I booked a convertible for a few days in Maui from Enterprise. I have Platinum and have always gotten 1-2 car class upgrades for free on cheaper car class rentals. Is it worth keeping this reservation in the hopes that my status gets me a newer/better convertible? The automatic free upgrade presumably wouldn't apply to this car class.

I ask because Autoslash says I can save ~40 on the same car class by going with dollar or thrifty.