(0000000000) - Interesting read.

Actually I ran the HPI RS4 Mini's back in the 90's along with the Roadrunner and M03 for mini class. The HPI crew (Ito-san, Akira-san, etc) helped me setup my RS4 mini as it had issues with on-throttle tracking. It could never perform at the level of my Roadrunner though.

For the 'recent' models I was out of the RC scene so completely missed the Atomic and ABC. I was able to get my hands on a CupRacer though. It was silly for me to toss my old beat up Roadrunner thinking I would never run it again...

TOP Racing mini's use their TC parts and at lot of them are interchangeable. I will mention that my SabreMini (210mm) with a 17.5T is plenty stable and can comfortably handle a 540 sized motor.

I wish Tamiya would take their TRF TC and make a 210mm version... 4WD and all. I would buy one considering how well my M-Four runs. I'm not a big fan of plasticy chassis I guess.