Hello

I am comparing these two models.

Does the 2004 year model have a engine vibration issue ?

What is the major benefit of the 2007 new engine when compared to the old one ?

What would you recommend in purchasing the 2004 at 38 k Aus $ or 2007 at 60 k Aus dollar.

The 2004 model has 36000 km and the 2007 has 26000 km on the clock.

 

I would recommend you bunker down and start researching.

But I would suggest you purchase the '07 HR.

 

Will this forum have the answers or do I need other resources?

 

2007 is better but 2004 is not too bad

 

If you don't get the 07, then you're an idiot.

 

SEARCH MAN. There was thread not too long ago. There is difference between 03 04 to 05 06 and 07 08. Latest motor is always the best. It's HR engine.

 

Yes, this site should be able to provide you with some very valuable information.
I would say, buy some beer and get comfortable

 

Here’s is a good link for 350Z specs. But you have to be careful. This is for the 350Z US: http://www.nissanhelp.com.