THIS! A cheap electric one works great, much quieter and easier than a gas one.Don't use anything sharper than the 40-degree nozzle, and keep your distance at least 16 inches.
Personally, I don't recommend that strong of a pressure washer for car detailing. Get a dedicated electric unit that keeps PSI low (around 1000) and GPM high (around 2GPM).
A great recommendation is the Active 2.0 with a 5.0 orifice 40-degree nozzle. 950 PSI @ 2.1GPM