Whats the difference between certified pre owned and just a regular vehicle. The dealer said he could knock money off the Infiniti qx70 but it will no longer be certified.

Certified pre-owned has extended factory warranty, included and numerous inspections. Regular used vehicles don't quite have the scrutiny and generally don't have the free included extended warranty the a certified vehicle has. Certified is the way to go.

http://cpo.infinitiusa.com/explore-benefits

Generally the manufacturer in this case, Infinity will increase THE POWERTRAIN WARRANTY. SOMETIMES IT INCLUDES THE "BUMPER TO BUMPER AS WELL.