In that case it has almost certainly been abused.It was an ex demostrator, one of the manager had it.
Most car salesmen think the accelerator is an on/off switch and will put it the floor even if only moving the car a metre or two.
Having said that the car shouldn't have suffered because of it, but things like the tyres might have done.
When I buy new I always specify the car MUST have 0 miles on the odometer. If a salesman has driven it, even if only a short distance, it will be rejected.