Cam Penner wrote:
Corners make a difference too. Under acceleration, FWD
cars have less traction when cornering than RWD. They are
splitting their available traction between acceleration and
steering. This promotes understeer when traction is lost.
RWD cars don't have that limitation on the front, but split
traction the same way at the rear. This is slightly less
likely to cause loss of traction, but it does. Rear wheels
have to split traction between acceleration and cornering.
The result of this traction loss is oversteer. In general,
understeer is easier to recover from than oversteer.
< snip >
Here is where we see the reason for your belief that FWD is superior to RWD:
You assume that a loss of traction is something from which we must
"recover." When driving in the snow, my car is sliding in some manner or
another about 50% or so of the time it's cornering. All of this sliding is
intentionally caused and controlled by *me*, the *driver* of the car.
Therefore, neither oversteer nor understeer is something from which I have
to "recover" because in either case the condition was something that I
caused intentionally. A RWD (or better still, AWD) car gives me more
options as to how I can make the car slide through a curve than does a FWD
car.
The expected response to the preceding paragraph (that "most drivers" are
incapable of controlling their cars in this manner) is a testament to just
how poorly trained "most drivers" are in the United States. As far as I'm
concerned, anybody who can't do a decent 4-wheel drift through a snowy curve
has no business operating a motor vehicle between the months of September
and May.
And anybody who doesn't think that AWD should count as a "safety feature" in
the snow has never tried to make a left turn onto a busy road in
less-than-perfect road conditions in a FWD vehicle. There aren't a lot of
things that I dread more than trying to pull into traffic in the snow with
my FWD Oldsmobile.
- Greg Reed
--
1976 Cadillac Fleetwood 75 9-Pass sedan
(FS:
http://www.dataspire.com/caddy)
1989 Audi 200 Turbo Quattro 5-Speed sedan
2000 Oldsmobile Intrigue
2001 Chevy Astro AWD (wife's)
2005 Subaru Legacy GT Wagon (when available in U.S.)