Although the width and length on this are the same as on the Yokomo, the application is a little different.
This is a 6-cell car running on mini-sized wheels, the Yokomo was 4-cells and ran on standard touring wheels.
There are actually already a couple of other 4wd 6-cell minis on the market right now, the Xpress mini has just been released (available in the UK already), and I think in Japan you can find an ABC mini and maybe a couple of others too!
They could make for a great fun indoor class, 19T will be plenty fast enough in the compact chassis, and you can use the Tamiya shells and other really scale ones for a great look too. Compared to micros they are still sturdy, take standard electronics and have better ground clearance.