240sx
1. Body kits are every where and you can get them for cheap and they come in so many styles
2. engines and parts are lying around everyones garages and you can get them for cheap
3. 1 in like 4 people know a significant amount about them that could help doing whatever
4. Engine swaps can happen in a day and so can turbo kits
5. They have space for a sports car
6. You can get coil overs for them easy peasey
Z's
1. Body kits have to be bought brand new and they are expensive as hell
2. Parts used are so hard to find unless you have like secret connections and new parts have to be shipped from a place that charges you out the ass
3. Only Z owners know about Z's and how many of those do you know with a badass Z?
4. Engines are bigger and if its the V6 everything fits like a puzzle and its impossible to get your hands around, the inline 6's however are so easy to get your hands around but its huge and hard to find parts for.
5. They don't have a lot of space.
6. Good luck finding coil overs. And when you do find them just remember with that money you could have another 240sx.
7. Turbo stuff is like impossible to find!