Any Yaris hatch rear suspension tweeks?

[Pars]

Originally Posted by keesue

Looks like that under-the-bumper bar was for additional chassis rigidity not for suspension tuning as such; and, the torsion bar is, in fact, the sway bar - confirming the above.

If the bar up front is for chassis rigidity, it should be called a strut bar, not a sway bar.

But it's good to know that the Yaris naturally has good balance without the aid of swaybars. That way, it can be farther be tweaked by sprinkling some swaybars or extra strut bars. Personally, I think it's perfect as is, but there's those who probably want a tail happy car for the race track. In which case, be careful, the chassis is a bit on the short side. I used to have a 84 CRX with Jackson Racing treatment. The car was incredibly quick around the turn, but it was just a quick to rotate on you without any warning.