Auto and interlock manufacturers are spending millions to develop interlock technology that has the potential to be seamlessly blended into cars as original equipment—much like airbags. They have already developed a number of options that could be integrated into new vehicles.
Volvo’s AlcoGuard is an integrated breathalyzer-ignition interlock that is already offered in Sweden as optional equipment. The AlcoGuard is set to prohibit vehicle operation when a person’s BAC is .02 or higher. Volvo claims that .02 is “an international standard that ensures safe driving.” By 2020, Volvo wants integrated systems that will “support all drivers in all situations.” (pdf)
Saab has also developed a cell phone-sized breathalyzer called Alcokey. The device is attached to the car’s keys and a driver is required to blow into the device before the engine can start. Field testing of the device began in late 2006.