Some noob help please

[4_cell_racer]

Not raced 10th off road for at least 15 years now and have just bought a sh Lazer ZX5 (waiting for it to arrive).

Now I've read through 18 pages of this section to read up on the Lazers and notice that there are 2 or 3 (maybe 4) different versions.

No idea what the one I have bought but the seller said it's the same type as the one Jimmy reviewed on this forum http://www.oople.com/rc/photos/zx5/

Where does this fall within the range please?

Thanks in advance

Lee