How is the Spacia if you splash through a bit of a puddle on the highway?

Does the wheel jerk, bump steer a ton at that speed?

If you happen to have noticed, how does it handle something like a steel plate (temporarily placed during road work) ?

I have just recently found out about the Subaru Sambar / Daihatsu HiMax microvans and have been very curious. Since I'm unlikely to find an opportunity to test drive a Sambar, I was imagining that these little citycars might be a bit unstable at higher speeds, wet conditions or travelling alongside semi-trailers on CONUS State roads and certainly the Interstate.