One of the biggest mysteries we'll need to solve for driverless cars is how to assign liability in an accident. Some experts think car manufacturers will start taking on more responsibility, but many insurance companies are still loath to touch the subject because of the various state laws that risk complicating the picture. But at least one insurer seems to sense an opportunity where others fear to tread. In what appears to be an unprecedented move, a British insurance company has begun offering a special policy designed for autonomous and partly automated vehicles. In theory, you could use this on your Google driverless car or your Tesla that's equipped with autopilot.

We may still be years away from seeing a fully autonomous car for sale to the general public, but many drivers already have a huge amount of technology in their cars, taking control of the vehicle at various points -- which is why an insurance company in the U.K. has launched what it believes to be the first driverless car policy in the world. The policy has been launched by Adrian Flux and will cover drivers who are already using autonomous features in their cars, such as self-parking and Tesla's Autopilot, which takes control of the car when driving on a highway. "We understand this driverless policy to be the first of its kind in the U.K. – and possibly the world," Gerry Bucke, general manager of Adrian Flux, told the Guardian. "More than half of new cars sold last year featured autonomous safety technology, such as self-parking or ABS [anti-lock braking systems], which effectively either take control or take decisions on behalf of the driver. And it's only going to continue. Driverless technology will become increasingly common in our cars over the next few years."

Car insurer Adrian Flux has launched what it claims to be the UK's first personal driverless car insurance policy. The policy is designed for consumers who already have driverless features in their cars, such as self-parking, or are thinking of buying a car with autopilot features. Fully self-driving cars are only expected to be on the road by 2020 at the earliest, when Volvo plans to launch such vehicles. Gerry Bucke, general manager at Adrian Flux, said: "We understand this driverless policy to be the first of its kind in the UK – and possibly the world... More than half of new cars sold last year featured autonomous safety technology such as self-parking or ABS, which effectively either take control or take decisions on behalf of the driver. And it's only going to continue. Driverless technology will become increasingly common in our cars over the next few years."

The insurance company's policy is basically a standard agreement with four additional areas of coverage for autonomous vehicles. The first covers owners if they are involved in an incident that is the result of an update or security patch not being applied with 24 hours of it becoming available, while another will indemnify a policyholder if those systems then fail altogether. Should a car fail to relinquish control in the event of a manual override or the car gets hacked, Adrian Flux says it will cover that too. Right now, the policy is designed for people who already utilize driverless features in their existing car, things like automatic braking or assistive lane changing. The company also notes that it would also cover drivers utilising Autopilot in the Tesla Model 3.