Was this your first time driving a motorhome?  I just recently purchased my
first motorhome, and noticed somewhat of the same thing on my first test
drive.  After awhile I realized that I was trying to over drive it.  Just
try relaxing a bit, and realize that you're driving something that is going
to be buffeted by the wind much more than a passenger vehicle or pickup
truck.  Try just holding the wheel steady, and not chase the swaying
tendency of the coach.  It's kind of hard for me to describe, but maybe one
of the more experienced here can do a better job.

Did you mention anything to the salesrep?  Surely he would be more than
happy to let you drive another one, if it means possibly making a sale.
This hasn't been a good year for RV sales in most parts of the country, so
he shouldn't be too busy :-)

Regarding the workhorse chassis.  I did quite a bit of research and asking
around, and came to the conclusion that the workhorse chassis with the 8.1
liter Chevy engine would be the best, particularly when mated with the
Allison transmission.  It has more torque and hp than the Ford V-10, and a
very small transmission hump inside the coach.

-Bob

As another poster noted, MHAs drive much differently than cars, vans and
trucks but this coach may be wandering more than ususal. If you haven't
driven others be sure to drive as many and varied coaches as you can. We
drove 10-12 coaches before finding the one we now have. Three were noticably
"different" and I later concluded those had serious problems (two Chev P32
and one Ford F-53). He's also right that a "light touch" will make it easier
to drive. In general you can't maintain a straight track so you learn to
relax and keep it between the lines and not a hazard to others.

That said, there are some serious issues to investigate. The chassis is
supposed to be aligned when built but there are no gaurantees after the
coach is built on it. The usual cuplrits of course include steering,
suspension, tire pressures, etc but weight distribution is a huge factor and
many MHAs are overloaded or have seriously unbalanaced loading due to
slides, placement of equipment and options. Alignment can usually be
corrected and you can control how you load the coach but poor design cannot
be fixed. When you find one you like have it weighed on certified scales and
make proper loading and load carying capacity part of the sales offer).
Preferably weigh all 4 corners, both axles and gross weight (check
http://www.michelintruck.com/michelintruck/hom_us.jsp for proper guidance on
weighing, loads and tires). If a dealer/seller refuses to weigh a coach or
make it part of the deal RUN away. There are thousands of coaches out there
and nearly as many sellers so find one that will deal legitimately.

As far as service, not all Chev dealers will service/repair MHs even if they
are on Workhorse (or older Chev P32) chassis. Likewise, not all Workhorse
service centers are Chev dealers. GM made a deal with Workhorse that all
parts must be purchased thru WH even if te Chev truck parts are identical -
this added $100 to an alternator on my coach. There's no telling where the
service and repair deals will end up now the MH chassis business is being
sold to International.

CruzMastr

Thanks for both replies; they were extremely helpful and I'm following all
suggestions so far.

An update: the dealer had two of their service department gurus test drive
the unit and they both concluded as I did.  The unit is being sent out for
alignment servicing and I am to do another test drive; plus test drive a
couple of others.

The Michelin site was excellent and I learned a lot.

Bill