Have you considered buying used?
The old model Civic SI had independent front suspension, while the new one does not. It also weighed a good bit less. And, with the money you save by buying a used car, you can buy whatever aftermarket seats you want.
Of course, if you want a car that's practical, comfortable, and reasonably zippy, a Subaru Legacy is not a bad choice. The fuel economy is pretty lousy, though.
Another overlooked option is the very good Mazda3. It's a very well made car, it's very cheap, it's very reliable, it's got good seats if you spring for the leather, and it's incredibly fuel efficient - my father managed 36mpg overall in his 2.3 liter 5-door on a long road trip through careful driving. There's also the Mazdaspeed 3, which is basically the same car with a turbo for another 80 horsepower.