The only thing I do know is that they work best with Carmax as they do not up the price of the car to cover the fee that RL charges dealerships. I have an approval from RL that I'm taking to Carmax next Saturday. Congrats OP, but you should take those approvals to the dealership and I'm willing to bet that they may be able to beat them with another lender.
RL won't touch that car. I believe the stips are 07 and newer plus less than 70K miles as well. Double check your stips. That type of mileage would be considered risky to them because if the car breaks down then payment stops is how they look at it, not saying you would.
I have had zero problems with them other than the only no-cost onlline payment is to have it auto-pay. Web site worked fine and when it had a glitch a real live human being got on and fixed it while I waited.
Isn't Roadloans owned by Santander?
OP, before you accept that loan, you might want to do a board search on Santander.