What was the most luxurious automobile to own pre-WWI?

Question

I've read that Lozier Motor Company built top-of-the-line cars priced between US$4,600 and US$7,750 but were they the most expensive?

Answer 1

Lozier was top of the line, but waaaaay back (circa 1910).  I think the peak of pre-war technology and luxury had to be Duesenberg.  They were in production until 1937 and featured high-end technology as well as uncompromised luxury.  Most were coach built, with the bodies built by 3rd party companies on Duesenberg chassis.  When a car name works its way into the language as being the best (a dusey, doozie, doozy) you know there's got to be something behind it.  They were expensive back then and could top $25,000 in the early 1930's.  Today, the rarest models, in top condition and an interesting ownership history are about as valuable as they come.  Prices for a lot of cars have gone nuts in the past few years, but find an all-time list of highest prices for classic cars, and invariably a Dusey will top any other American made machines.  As to the Europeans, Bugatti was their equal and there are plenty of classic Ferraris that sold for a lot and still do.  

Edit: dummy me, just noticed it was WWI not II (why do we insist on I and II rather than 1 and 2?).  Well, don't know as much about them, so I'll let someone else answer.