I'd not trust your typical car/detail place to do the kind of job you want.
Look for a specialist detailer that gets paid at least $50 /hr and has satisfied customers.
You have to carefully wash all the debris off your car before the wax polish stage otherwise you will be grinding dirt into your paint and wax making it less mirror like.
The Boxster is a small vehicle so like the others say, its not too long a task, and a polisher can make it quick and painless to produce remarkable results. Except for swirls on Black cars
The occasional claybar is also helpful but only when you notice the reflectiveness reducing since as the others have said, its abrasive and you want your clear coat to last.
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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)
Hybrid Mode
