A portable sensor unit for capturing motion and/or other data may be securely mounted on objects such as a user's limb, a vehicle, or other items. The sensor unit may then collect motion and/or other data from the object to which it is affixed, and may provide this data to a data logger which stores the data. The data logger may subsequently communicate the data to a gaming system which may tailor the motion characteristics of a virtual object to resemble those of the real-world object from which the motion data was captured. Thus, a user can (for example) capture motion data from a vehicle, with this data being supplied to a video gaming unit which provides a virtual vehicle having the same acceleration/deceleration, handling, and other characteristics.