Actually, not a whole lot (even though there is a larger difference than the
previous generation). I hate to say that too, because I usually
wholeheartedly recommend the V-6 over the 4-cylinder for engine choice.
However in this case, the 4-cylinder feels nearly as powerful with light
loads, slightly more fuel efficient, less expensive to up-keep (including a
savings in car insurance cost), and offers a better balance in handling.
The V-6 will be a little more quiet, and will do a better job with a full
load, but other than that, the 4-cylinder offers more bang for the buck
(i.e. cost effective).
If money is not really a factor, then I recommend that you test drive both
and see which powertrain you prefer. If you are taller than 5'10", make
sure you can drive this model because there is not much driver's seat travel
for the sedan since the 1989 model year.
I hope this helps.
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