"H.J." wrote:
You can rent a Ferrari for $200 PER DAY. Has anybody ever rented a C-172 for
$200 per day? A ferrari has more horsepower, higher Vne, and is more
complex. And, yes, a typical car is more complex than a typical plane - a
car has numerous moving suspension parts and transmission parts, water
cooling, etc.

Let's keep it an "apples-to-apples" discussion.
Forget rental cost. How much does a Ferrari cost to buy? $300k? $500K?
Both are mostly hand-made, hence the high price of acquisition.
Then there is maintenance... the mechanic's education, tools, cost of
replacement parts, etc.
Same GM part for a Chevy and a Cadillac, do you pay the same price from
each dealer's parts department?