Fun car Trivia: Early voice warning systems in cars of the late 1970s to early 1980s, such as the Datsun and Nissan "Z-Car" series, found in the 280ZX and 1984–1988 300ZX , and the Datsun Maxima and Nissan Maxima of the early 1980s, were also known as "Bitching Betty". It was a feature that gave the car a breathy female voice to tell the driver about open doors, low fuel level, and other areas of concern. This system used an ingenious miniature plastic phonograph record and all-analog control circuitry to make Nissans talk. There's a motor to drive the phonograph record via a rubber belt, a tiny tonearm with a relay-style coil to push it against the record, and a bit of circuitry to control everything. Amazingly, it worked well and had very little problems. But not all customers liked it. A customer once asked me to remove the unit and he smashed it with a hammer once I got it out!