Ther is some issues with caster...ish tunings on both of ETK's. ETK 800 is a caster tunings work to opposite directions: 0% means standard wheel position, -100% move wheels more to positive position, 100% move wheels more to negative position, (on other cars work the other way around). ETK K more complex problem, that wheel arch shifted on fenders according to the wheels at standard 0% caster. So are both of ETK's have a feature at front axel: the more negative caster, the more grip front wheels have (that not a problem). Also, both of the cars do not show caster on a number equivalent at "Advanced Wheels Debug App". Hope, someone understood, what i'm writed.