RE: "21st Century" line to return to "Toys R Us" !
Neither the Bradley nor the Stuart were RC'd at first. None of the 1/18 were, either...but the detail on them was really fantastic. (I "found" the Tiger's Fighting Compartment when I took the tank apart for painting.)
21st DID "R/C" the 1/6 Stuart much, much later (we never got it here) but it apparently "had issues". A private "Customizer" was selling an R/C'd version of the 1/6 Jeep --but 21st hit him with a "Cease and Desist" order. The Panzer IV in 1/18 was also R/C'd, but that's another one we "never got".
Tamiya was the only company at that time offering a "commercially available" R/C'd tank. (I had their Sherman. Leopard and Tiger II. I'd of kept them all if I'd know you could get a spped control for them. Naturally I didn't learn about that till after I'd sold them...No "computers" or Forums then, or I'd still have them! ).
Keep on Trackin'--
Paul McD.