SauRoNZA
Honorary Master
Shouldn't affect the car .I drove all my cars to their potential off the showroom floor and never had a problem (I have a warranty for a reason).
Maybe he jus had bad luck but both of them are potentially in the wrong (Him not checking the oil and them not filling up car according to specification )
Well I don't know about your car but generally gearbox oil isn't something the driver checks...
There is a difference between driving a car hard though and not being able to drive properly and doing so in utter ignorance. That will definitely hurt a motor.
Although there is always the chance of it simply being a very unfortunate lemon.