Aggie, see about getting a second opinion before you go looking for a new car, especially if you like your current one. With the economy being as such, it's not unlikely that mechanics are
looking for work to do on cars. If the car wasn't doing anything, do not have him seal the hole, especially if the other mechanic says it makes it harder to fix, unless it's already done?
You mentioned Saab. I have one and I love it! The only problems I have had with it has been the stereo system. Twice. Other than that, it has been a highly reliable car, drives beautifully, and is one of the safest vehicles. You can hit a moose with it. It also has a S button and the turbo kicks in and it feels like you're in an airplane. Saab also used to build airplanes, so they have that aerodynamic feel.

I also have to be comfortable driving a car and I am in my Saab. I like the layout of the vehicle. and it also has a timeless quality to the design. I get great mileage - 30 mpg on highway.