On the Corvette forum Rejex seems to be the most popular wax. It "sounds" good to me and I was thinking of trying it too, but I still have a ton of Zaino left so it won't be anytime soon. Did you ask the same question over there? You might get more of a response since it's so popular with the Vette guys...

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'08 335i Coupe - Barbera Red / Saddle Leather / Light Poplar Wood / 6spd Manual
Options: Sport, Premium, Cold Weather, Comfort Access, Active Steering (awesome!), Power Rear Shade, IPod Adapter, Navigation w/IDrive
Mods: M6 Wheels, Split Armrest, M-Steering Wheel, Euro Light Switch w/Rear Fog Lights, Short Shift Knob w/Matching E-Brake Handle, Clear Reflectors, CDV, Clear Bra

Retired:'04 X5 4.4i