I have used Zymol Creame, Carbon, Concours, and Z3 Glaze. I believe the Concours is about $150 retail, the Creame (for light finishes) and Carbon (for darker finishes) run about $39.00 ea. retail and the Z3 Glaze is $38.00 at HMS Motorsports. I used Concours on my 97 Z3 2.8 because the dealer used it to detail the car than gave me the wax, shortly thereafter Zymol put Z3 Glaze on the market and I began using that (a lot less expensive). I have not noticed a difference in the Concours and Z3 Glaze. The liquid wax sold at WalMart and Kmart is the least expensive, about $10.00 per bottle however I do not feel it lasts very long and I am not sure what the pure wax content is. I think they developed that for entry level.