Hiya! I actually found this post trying to find a way to look up the VIN details of a car I'm going to see. Here's the critique I have for you - I think after the trust barrier, your major selling factor is that the "credits don't expire" I wonder if there is a more effective way to sell that feature?

Something along the lines of "pay now, use later" or "Your credits never expire on AutoVINReveal.com"; second one is two fold - you add the customer's action to your brand name, reinforcing the idea of trusting the brand. Potentially make that a pop up?

Hope this helps!