Those Tamiya models are the best I've ever seen, and are far finer detail than the Heng Long RTR models that I have. Still, for stand off scale, the Heng Long's do look the part, and were rather inexpensive at the time, so running them over obstacles around the yard is far less worrisome, than were they precision scale detailed models.
But for display purposes, your beauties certain win hands down, just as that lovely Renault so well shows!