I use that stuff to clean my bikes... Never thought of using it to clean the car... Tho I'd think the finishes on a car would be much more durable then bikes so as far as it that goes it should be fine. The bike shop guys did say the it leaves a residue and to not get it on my rims or it would screech when I applied the brakes. I don't know how it might affect your chrome and other shiney parts on yer spiffy new car.
Ps. Had a co worker and wash his new baby-- I mean car-- and left ultra fine circle scratches in the finish because he used the same motion each and every time. May have been the cloth too, not bing as soft as he thought, so wanted to throw that out there.