vAuto has been helpful for both new and used.
For new, it is an expense we are cutting, as there are not that many competitors around, and we are not allowed to build our allocations, we are given them from the OEM, and accept them, or suffer the consequences. Easy enough to cross shop half a dozen stores to make sure we stay competitive.
On used, we can push the search radius out as far as we need to, to gather enough data to set trade/purchase values, so we are in the car right after recon & putting the cars on the front line.
From there, it is a LOT of training the staff not to build the expectation of discounts, but rather build the value of WHY the cars are priced how they are.