First car brand new lasted fifteen years inland. Where we live now at the coast, the rust eats them up, lifespan approximately ten years. Second hand still (no more than 3 years old) saves on some taxes imposed, always try pay vehicle off as quickly as possible, or pay cash.
Where we live new cars are over inflated in value, you could end up paying almost equivalent of a brick and motor home for fancy ride, so I err to caution in what is required. Long distances to travel, little to no public transport, we rely heavily on private vehicle.