Just picked up my '12 HB SL, Mag. Grey metallic, last night and I'm wondering how long are you waiting before you first apply wax?
I noticed another thread where it was mentioned that these have thin paint. Glad I saw that because my first step with most fac. clear-coat paint is a ultra fine (2500) color sand and polish to level the orange peel and finish with Zaino topcoats. The surface on mine isn't terrible and certainly not worth risking trashing it with sanding.
I'm actually looking forward to doing this since the Versa has about 1/4 the surface area of my last car