Avgas Where is the ceiling?

"Roger" wrote in message
...

Most of them are around for another 10 to 15 years as either a second
car, a beater to drive to work, or driven by, as you say, the less
wealthy/fortunate.


Yes...so? The point is for the majority of vehicles, not a complete
purging
of the inventory.


It may depend on where you go, but I'd guess that in this region,
Michigan which is the home of the US auto industry, that well more
than half the cars on the road are quite a bit older than 5 years. My
fore-runner is a 99.

FWIH, the number of cars is growing, so the auto makers expect to turnover
their buyers every five years. Older ones are lasting longer as well, but
average age is still a lot less than for aircraft. IIRC, average age is
seven years but that may be lengthening due to the slow market the auto
industry has had these past few years.