So...this is sorta a scam...same with my employer's "$500 rebate" from PerkSpot/TrueCar. No, let me rephrase that, it is a complete scam. You sign up, provide your info, then when you click for your $500 rebate, it sends out your info to the area dealers, that you are looking for a particular truck, etc. It was NOT stackable on top of the Conquest Cash and other incentives.
I've battled with PerkSpot/TrueCar (placed 8 phone calls to various companies on that string, got nowhere) and bottom line, they are shady. They sell their cold call system to the dealer, so they make their money, but never really give out anything. If you are able to get the $500, either you have done something really well, or didn't negotiate all the discounts you could get, well above that $500.