I tested all that and it was great like newTo check front and back engine mounts, with your left foot on the brake firmly (do not release), begin raising the rpms with your right foot. If you hear knock knock knock..., then you have a bad engine mount. The same test can be done in reverse.
Another thing I'd check is the transmission. When on the highway, activate the cruise control. Watch the rpm gauge for any erratic behavior. If it's fluctuating, it's slipping. I'd also take a white cloth and check the quality of the transmission fluid. Is it bright red? If it's black, walk away.
I'm not sure what you mean by that. I don't feel the need to pay a mechanic to tell me that the motor mounts are bad or some of the suspension parts are worn out. None of that (of course there are exceptions) make the car undriveable. Old fluids (coolant, brake, transmission) aren't ideal but I can change that myself. I choose to do timing belt based on mileage alone--This is a decision I've made based on research and my personal risk tolerance.Regardless of the vehicle's age?