For safety critical displays, that is. A big share of IVI systems used Qt and QML for years; with this component, the same stack (Qt+QML) can be used for the primary driver displays, including warning and damage lamps.

Until now these indicators were almost always actual physical lamps; the information displays often found in the center between tacho- and speedometer don't use any kind of fancy graphics at all; they're mostly just black and white LCDs driven by the ECU over the CAN bus.

What were the previous alternatives?