A larger rear glass window with integral heater element also helps in this respect. (autoweek.com)
This Milwaukee Tools jacket run on the M12 battery, and has heater elements in it. (humblemechanic.com)
Lambda sensors work at elevated temperatures, around 300 °C (600 °F); many lambda sensors contain a resistive heater element to help get them up to temperature quickly. (mechanics.stackexchange.com)