Is there a website that discusses (exposes?) whether car makers are
selling concept cars that are really built on old chassis?  I mean, I
would hate to buy a new car only to find that it is really a 'kit car'
built on a ten year old frame / suspension.

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Clarification of Question by whuffo-ga on 15 Feb 2005 19:12 PST

I realize that my question may have been misstated.  I am not asking
whether car makers are literally marketing new cars on 'used' car
chassis. I know that would be ridiculous to ask.  What I meant was
whether the new concept cars are really old design frame / chassis
with a new face.

I believe that most cars are now built using 'monocoque' construction

http://www.answers.com/monocoque&r=67

If that is so, I would prefer to have an old style chassis.

This is a common practice for auto makers to get a new car face onto
the lot in a hurry (and to save money in the process). The first Ford
Mustang was based on the six-cylinder Falcon chassis. The PT Cruiser
and the New Beetle both used existing underpans. I prefer the "old
style" frame-rail chassis, myself. Most pick-up trucks still are
manufactured that way. Many SUV's though are going the route of the
unibody construction.

Irishlad, that's good enough for me.  Thanks for the answer.