Are you a weekend "wrench" and been working on your 911T yourself? Both the cars you are looking at have 300+ horsepower on demand vs 165-190 that your currently car has. Both cars a heavier, wider and less demanding to drive. But both cars can be much more costly to repair and purchase parts for; along with the fact you may or may not be able to do the work yourself. CF brakes are great until you need to repair/replace them, then the price will catch your attention; flip side>stop on a dime little to no fail! But everything you have done now on your current car will be a little more expensive in on these two cars>service. But the general rule after you have it "checked out" by someone you know and trust; is purchase the car with the lowest mileage. I saw the comments about 200,000+ miles, I own a 3.0 with well over that number; I have not hear of the newer cars going that long without doing the top end or overhall them. Maybe others will comment on that factor.
My personal two cents, if the money is about the same, both cars check out, and you like both of them>
Buy the C4S, Rear Wide body car, all wheel drive is great, not in some cases as "sporty" but more forgiving if you make a mistake. Also, maybe a little more resale value in the future, but maybe higher insurance cost now??
How everyones input helps!
art
agrimmitt@pelican