Floaty feeling at higher speeds common?

[tmontague]

It's likely the fact that the yaris is such a light car than many others that you're used to. I found running wider tires, rims with a wider offset and more negative camber helped a lot for high speed stability.

I run 40/36 f/r for tire pressure. Mainly because I travel a lot of km's a year and I found anything less caused ore nature seat on the shoulders of the tire relative to the middle. Any pressure higher than that and the bride was too rigid