how about something that GRM HASN'T done before....something that isn't a sport-compact but can beat alot of them from a stoplight.
how about the first true performance mid-size sedan out of Japan, back when the Accord and Camry were boring slugs.
how about the car that was self-badged "4DSC" for "4-door sportscar"
something that is less cliche than a bmw or miata or subaru and would truly be "grassroots motorsports"
something with a virtually bulletproof drivetrain where your biggest issue is likely to be a blown MAF or a bad coilpack. Something that cruises comfortably on the highway and can get around 30mpg there (low 20s in the city). But with a few suspension tweaks can handle the track just fine.
MAXIMA. And btw, maximas have excellent A/C.
3rd gen: fairly light, strong and bulletproof V6 (~190hp in later 3rd gens), room to seat 5, big trunk, good M/T, IRS. Can be found in your price range
4th gen: stronger V6, stronger tranny, more room, a bit heavier. Downside is beam rear axle (like B15 Sentra). Surprisingly good aftermarket. Low resale value means they can be found cheap.
5th gen: even stronger v6 (222hp 00-01, 265hp and 6MT 02-03), great transmission, heavier but faster, still has a beam axle, brakes need upgrade.
of course, I'm kind of partial to the 5th gen.
and switch your street wheels back on, take the magnets off, and it looks sexy driving back from the track too
Any of these you can probably find in your price range these days, aside from maybe the 02+ would be a bit higher.
You'd be surprised at the aftermarket available to all three generations if you look in the right places.
and of course, I am here to consult on your mods (former maxima.org moderator) :D
mine had 180k miles on it and a few dozen autocrosses and a track day or two and the only things that ever went bad were my MAF, 2 coilpacks, and a rear brake caliper.