1. A system, comprising a computer, the computer comprising a processor and a memory, the memory storing programming executable by the processor to: obtain data concerning at least one attribute of a vehicle operator; use the attribute to determine a plurality of respective modes for positioning each of a plurality of vehicle components during autonomous travel of the vehicle, each of the modes specifying, for each of the components, whether to move the vehicle component during the autonomous travel to mimic movement of the vehicle component as if the vehicle were being manually operated or not to move the component during the autonomous travel; and perform autonomous travel of the vehicle, including positioning the vehicle components according to the modes; wherein the vehicle components include at least one of a steering wheel, a brake pedal, and an accelerator pedal.