Hi Yvonne,

We asked Toyota about this one and it seems to be perfectly normal. Here's what our contact said:

"Short answer – yes that’s totally normal to have different glass on windscreen versus the other windows.

The tempered glass can endure a very high impact without breakage. If it’s broken by an extremely strong impact, it will break into small obtuse angles, but won’t harm humans.

The front windscreen is Lamisafe – so laminated - and offers higher safety functions. It offers higher strength when the laminated glass is broken by extreme impact, and also the broken pieces of glass will still glue together."