I always thought the G12 was steel.
G8s were manufactured in canada until the early 90s. (design probably revised a few times - larger blowers for a/c and electronic ignition)
General public's attitude towards our energy predicament: "I reject the reality of finite resource depletion and substitute it with my own; energy is infinite, we just need an alternative storage medium to run the cars on. The economy can grow indefinitely - we just need to "green" everything! Technology is energy! Peak what?"