Certain cars after a certain age i think can be competitive - Ken Reith ran a RC10 Worlds & a YZ10 at the F3's and did very well with them, and they certainly didnt look the 18 + year old cars they were. A few more like early Cats, Lazer ZXR's, Losi XX's or B2's are also still competitve at club & regional level, let alone a Vintage Series
If the parts are available they can be good cars to run.... thats the only problem for regular use - parts availibility. If your worried about the longevity of the cars then fair enough stipulate a mid-wind brushed motor, but boy will it be slow compared to our normal buggies !
And i agree if there arent enough regular drivers in the vintage series then cut the series short ? I would think the first couple of races would be quite popular, then we'll see if it stays popular ofter that...
Whichever way it goes for the motors, it would be good if the desicions made soonish so we can all get the electronics sorted out in time
