Up until the 2020 Lexus RX, every modern Lexus came with an annoying asterisk: Yes, it was a fine vehicle, but the touchpad or mouselike multimedia controls were so confounding and frustrating that it eventually made you think Luddites had it pretty good. So what’s changed for 2020? The updated 2020 Lexus RX ditches the mouse and adds a touchscreen, Apple CarPlay and Android Auto, addressing one (or is it several?) of the luxury SUV’s weakest areas.