I bought both the Sun Joe and Greenworks both in non-brushless. Long story short, get the sun joe. It’s cheaper and worked better for me. Amazon constantly has it on sale for $80-$110 depending on the model. If you are washing your car, do not buy brushless.
Get yourself a foam cannon attachment (get a cheap one off Amazon, they’re all the same and can be modded cheap) and avoid spraying directly into any internal openings on the car such as any hood scoops or vents leading to radiators or condensers. Power washers even designed for cars can easily break the fins in your cooling system and lead to $1000+ bills from your mechanic. Trust me, my WRX knows.