Apparatus and methods to process vehicle or driver behavior data are described herein. In some examples, the behavior data is used by a premium calculating engine to derive a premium for a vehicle insurance policy using the data. The behavior data may be associated with a single driver, or may be associated with all drivers of a vehicle without regard to the actual drivers, in some examples. Data received from the vehicle may also include vehicle performance data, in further examples. Additionally, a method of underwriting a dynamic vehicle insurance policy is described, in one example.