collinite 845 ftw!!! very easy on/off and economical, durability is VERY good. 845 is a really good wax for using over the winter due to the lower temperatures,it goes on like butter and cures fairly quickly even on a cold day, can be a pain in the summer though when its hot as it can bake onto the car if you dont work quick enough;)
915 is also a very good wax.
highly reccomend dodojuice blue velvet or purple haze or purple haze pro which has more carnauba and some addetives from there red mist detailing spray if you want an uber glossy wet look finish:)
swissvax range is also worth investigating.
your better off putting 2x layers of jetseal on first then go over the top with your chosen wax.
your mk3 looks awesome in your sig pic