First...honest gut-check time. The fact you have to ask the question (and shame on the folks at your LHS for putting the question in your mind...) tells me you wouldn't know the difference between the two if you drove 'em back to back. That level of experience takes TIME.

Second...I wouldn't have the Gen-X up my a$$ if I had room for a barn. But that's personal choice, just like the guys at your LHS, just like most folks here. Your best bet would be to spend this year racing your 3.2R (which is a DARN good car) and learn set-up's, how different adjustments affect the car, and adapt it to your own style. Once you get to where you can see what the different adjustments do and IF you find an aspect of your 3.2R that you just can't adjust to your liking...THEN you try to find a chassis that will. IF there is one. And someone had better be able to show you why chassis X will solve your ills because there really isn't a lot of difference between any of the chassis out there when you get right down to it. And NO difference between them that a first year (or second, or many third) driver would be able to exploit.

Drive what you've got, have fun with it. The best part about 1/12 is that you will learn something new every race weekend. I know guys that have raced 'em for 20 years now and STILL hear 'em go "Hmmm..." every week.

Scottrik