They look different too 
exactly why not get a wideband o2
Do they?
I was checking some pics out, perhaps they were mislabeled, but they looked quite similar. Some were 2+2 and some weren’t, is that right?
Also i obviously understand that they were made sequentielly a few years apart.
Lol, finally discovering old Z cars eh dan?
there are subtle differences in the model years, mostly in the front bumper but there was also minor changes in the rest of the body.
I was soooo close to buying spliners 240z but my parents wouldnt let me have 3 cars 
i Will have one for my next project
a Few from my collection
And the god of Z cars
g nose ftw
Trev, what kinda engine setup is that blue one running ?!?!?
BTW Mike, that front end looks AWESOME!
What year/model did it come on?
Its a nissan LH45, from the Q45, im pretty sure its pushing somewhere around 700-750 hp in those pics.
a slick G-nose
Trev send me your collection !!
Get A Room You Two.
Mo, you’re an angry kid you know that??
I have an explanation for that, as a child the only thing outside was a sand box and gate to hell. lol dan its cause i held in my fart today and it went up my spine and into my brain now all i have is shitty ideas and remarks. Thanks for your concern my humble friend.
Osad,
All of the generation have a slightly different body line starting from just over the front fenders going along the top of the door line and back. The 240Z apears to be a little smoother than the later 260, and 280Z
As well there are significant differences between the 240/260 and the 280. The former has the front turn signals on the bumper where the later has them mounted inside the grill for a much cleaner look. Also, the tail lights differ from each model. And imo the 280z tails are the sexiest. The 240Z also came in the G style which is the ventless front nose that comes to a point.
And although it seems obvious, the 240 is a 2.4L the 260 a 2.6 and the 280 is a 2.8L sohc inline 6. There are various carb setups on all generations depending on the customer ordered.
All are beautiful cars. And very difficult to find in good condition.
Wow… extensive 
Thanks man!