Just saw this other active thread on similar lines (but related to Mercedes Benz) : https://news.ycombinator.com/item?id=47997418

Keyboards outperform touchscreens in new computers.

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> Research by TRL in the UK in 2020 found that mobile phone interfaces for car touch screens, known as Apple CarPlay and Android Auto, reduced reaction times as much as drink or drug driving.

Increased, presumably.

reduced by a negative nomber maybe?