> Diesel locomotives are one of those things where the engine can be well over 50 years old and no one bats an eye since it's just not that unusual nor has the

> Diesel locomotives are one of those things where the engine can be well over 50 years old and no one bats an eye since it's just not that unusual nor has the styling changed that much to make it obvious Well hey, look at aircraft. The 747 was only just retired but that's a design from the late 60's.