Hertz - Las Vegas rental for 5 people

I need a car next weekend in Las Vegas for 5 people. The SUVs are real expensive ($200+) so I've booked a Fullsize ($62) for the weekend. I used PC# 00936305 and a AAA to get this rate. What are my chances of getting an upgrade? If I used a "Once-Car-Class Upgrade" PC the rate jumps to $108 - what does that upgrade me to anyways? I'm Hertz Gold.
Any suggestions on getting a nice large car for 5 people? Thanks!

Fullsize is a Taurus, so should be alright.

I usually rent a Premium (Crown Vic) cause I like the leather and the V8, but I do get the TownCar when in Vegas (just something about a black TownCar cruising the strip).

If you have a corporate CDP #, then you can use the biz customer double upgrade promo (PC#), CPN = 924921.

<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by RedEye2003:
If you have a corporate CDP #, then you can use the biz customer double upgrade promo (PC#), CPN = 924921.</font>

can you shed more light on this promo?

U can use this CDP: 576410 20% discount

<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by UALOneKPlus:
can you shed more light on this promo?</font>

Here is the web address...

http://bapmember.hertz.com/spec/doubleupgrade/