Autonomous vehicle company Waymo has just completed 10 million miles of testing on public roads -- and by the end of the month it'll have clocked up seven billion miles in its virtual world. In a press release, Waymo CEO John Krafcik said that while the company has made "great strides" in its history so far, "the next 10 million will focus on turning our advanced technology into a service that people will use and love." According to Krafcik, Waymo now plans to concentrate on capability, comfort and convenience. Its engineers are reportedly working on new in-house sensing systems, which will help vehicles navigate complex weather conditions, such as rain and snow. Krafcik says the company is working on striking the balance between caution and assertiveness, and cited merging lanes in fast-moving traffic as an example of the challenges it faces.