If all you want to do is have a fun car you can autocross, get anything, it doesn't matter one bit. Any car can be fun if you are autocrossing to have fun! I just double checked and not a single G35 at nationals last year. A few 350z's ran BS -- 6th, 42nd, 45th, 50th, and 56th out of 60 entrants.

 

I'd say it's a competitive car. It's definately a fund car to autocross.

I'm currently running about 4 seconds behind on 70-80 second courses, and I'm the only guy left running regular street tires. Everyone else is running R-compounds. That's with an automatic tranny and an open diff. DS competition includes the Acura Integra GS-R, Nissan Sentra Spec-V, and the Saturn Ion Redline.

We tend to have larger courses with some open sections in San Diego. The west lot at Qualcomm Stadium is huge.

I'm planning on getting some real tires real soon.

 

I did my first autocross in G today, so I'll throw in my 5 cents. Mine still has Potenza's EL42(all seasons) on it, so that was definitely weak spot-front just didn't grip in very tight corners. But grip on wide sweepers was very good, and in slalom sections it didn't feel heavy and clumsy at all-very quick transitions and it kept tight line(I was afraid of slalom section, but it turned out to be one of the best-feeling)No nasty surprises, no spin outs, no burn outs-I did it in style, just gotta find some speed.
Overall result was not impressive-like 10th from the end(Last year with FWD Mazda Protege5 I was top 15-20 overall out of field of 60-70, top 5 among FWD-same club, same crowd, same lot). CL600 V12 was 2 seconds faster than me, but Protege5 similar to mine on Viktoracers was 6 seconds faster
RWD is new to me so I hope to improve.

I would definetely recommend autocrossing G, helps to learn the car no matter what results are.

 

I am trying to win my local KY regions BS title this year. As of the second event I am in second against BMW's, MR2 Turbo's, 928's, etc all with Hoosiers There are usually 8-10 entries for the class this year. I have run 1 time on my R compound Hoosiers on the stock rims. I had the fastest time of the class and would have won had I not coned on the last gate, I would have been one of the only Stock cars to break 60 seconds on this course. I was consistently as fast as the nationally competative driver in a very well setup mr2 turbo who has won the class 2-3 times even against the S2000 year before last. I came in 17th on PAX out of 107 drivers, the MR2 was 14th. This is my 7th auto-x ever. Will the G35 win the BS national jacket? Probably not. Will it win local and regional events? Absolutly, with the right driver.