Tcut........
It's a bit aggressive on the Z mate. Or any car for that matter.
I'd perhaps recommend wash, clay, wash, polish (dodo lime prime or autoglym SRP or similar.....), then your choice of wax.
I wouldn't want you to make a mess of your lovely GT4!
Thanks for the advice, all the members on here are very helpful! Saved me posting another thread too. I will post my results Then it's off to CS for some Nismo styling and a few "adjustments"
I think the Nismo kit and shorter springs at the back will help complete the look I am after. The back of the car looks like the arse is pointing in the air a bit!