Swissol works well on my car also.
Originally Posted by Z4 Beemer
I used Swissol Zuffenhausen wax on the Z4, and plan to get a coat on the coupe in the next couple of months. You apply it with your hands, leave for 15 mins (I think) then buff off. Its hard work but really does give a very waxy look and most bits of muck/dirt just slide off (even bird poo).
Its quite expensive though - £70 for a small tub.
but I would highly recommend it.
2010 E90 335i M-Sport, 2005 E90 325i M-Sport, 2003 E60 520i, 2002 E46 330i Sport II, 2000 E46 325i Sport I, 1999 E46 318i, 1998 E46 323i SE, 1996 E36 323i SE, 1996 E34 518i, 1995 E36 320iA, 1994 E36 316i