Loosesalute on HRW here too, should know. But I agree with John from the looks of the chassis and guide pin hole I would say . Carrera. I dont think it has been remotored although it may be, but the copper contacts normally run on the bottom and the motor turned 180° so the contact's are press fit . At least the last batch I got were. Rusty may also know a good deal about these . Bob
I have a couple cars like those, somebody was selling some on here 5 or 6 years ago with a different body style, Sort of a cross between Carrera and Artin. They aren't too bad, in fact I like'em better than either of those & they are Inexpensive!