Don't forget the Zaino system. It's not wax but it performs the same function but better. It lasts longer and it looks better. The minus - its more expensive and the first application takes longer. If you really care about the look of your car you'll use Zaino. Most show cars use Zaino not wax.

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JSR

1983 300D Turbo
1995 E320 Wagon
2001 MR2 Spyder
2001 Subura WRX Sedan