I got a 3000 psi pressure washer and thought I'd give it a try on the Boxster.
Does a fantastic job on the rims as you can use the stronger settings and it takes all the brake dust off every nook and cranny in seconds.
However, I though it would be too powerful and perhaps even abrasive for the rest of the car and better not get the spray anywhere near the top material.
I used the Soap feature to foam the car up though and it probably cut my hand wash and dry down to 15-20 minutes due to the wheels literally taking only 30 seconds each instead of the many minutes each with a brush.
I did hit the ground with the spray once and all the dirt flew back up onto the wheels
.....so aim carefully with the sprayer.
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"It broke because it wants to be Upgraded
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2012 Porsche Performance Driving School - SanDiego region
2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP,
Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012)