Truth be told I'm really enjoying the entry level cars and especially the 'analogue' cars where its you and tyre - no aids
I downloaded the F4 mod and it is a hoot. Massive commitment under brakes and otherwise pin the throttle and minimise the lock/steering scrub.
The F Renault 2.0 is likewise great fun.
I have to say the NZ tracks I've tried thus far are pretty dismal. I see there is a guy here has taken a crack at a better Ruapuna so I'm going to try that today
As far as Im aware, theres only 3 NZ tracks in rFactor 2 at present - Pukekohe, Timaru Levels and Highlands. Pukekohe was a pretty average conversion from a guy in Australia, Timaru is also a conversion but is relatively accurate, and Highlands is much the same, accurate but not the most visually pleasing.
We are working on bringing more into rFactor 2 (especially when you consider rFactor 1 had more or less every NZ Track in it), but it is rather time consuming.