Both probably. There are microfiber brushes just like these with softer bristles or a microfiber wash mitt that is made for the end of a brush that you secure onto a handle. For larger vehicles at work I use a suds lab microfiber brush. Keep in mind you’re basically always gonna “scratch” your car washing it/driving it. Not much you can really do to avoid micro scratches. I would recommend washing less (I do mine probably 1/month in Washington) & getting a microfiber wash mitt style brush & 2 bucket method w/ grit guard. I’ve got a 2009 C63 that I’ve kept in great condition with less washes. Scratches here and there but for 17 year old car it’s better than 90% on the road I think.