There's a thread about these cars at:
1/10 235 mm On Road Thread
Some of us in So-Cal still try to run these cars.
My K2X Avance is a keeper for me. Its the closest thing I can get to running 1/8th. Aside from the power difference, it pretty much moves and reacts like the 1/8th car. Its just a fun and easy car to drive.
I think there is a class for it in the up-coming Nationals that will
be held in Santa Clara.
And I heard the class is picking up in Europe.