[Black Tooth]

A rear windshild? Never heard of it. Is that some kind of European model?

I thought they called it windshield, due to wind striking the front glass on a vehicle. Thus the word "windshield".

[Spktyr]

The front and rear glass on a car are both called "windshields" and have been for many decades. Call up an auto glass service and ask for a quote to have your "rear window" replaced, and they'll ask which side. Tell them you need your rear windshield replaced and they'll know what it is.

The Brits call windshields "windscreens".