The purpose of this study is to evaluate a variety of technologies in a driving simulator. Specifically, this research will provide a direct comparison of driver performance measures under various modes of mobile device interaction. The study will be conducted at CU-ICAR using the DriveSafety CDS-250 driving simulator. The experiment will be a key step in understanding what driver performance challenges and errors may occur under various interaction modes in the driving context. Results will investigate differences in driving performance in the presence and absence of full device pairing with vehicle electronics and what criteria might be considered for proposed pairing requirements. The driving simulator tasks will focus on visual scanning ability while engaging in secondary tasks using mobile devices such as (but not limited to) handheld phones with and without Bluetooth, mounted touchscreen displays, various voice-based interfaces, and the novel display system. Tasks will include activities such as making voice calls, text messaging, searching for points of interest on maps, and traditional in-vehicle activities such as changing the temperature, fan speed, radio station, etc. The number of tasks and interaction modes will vary between participants with up to 6 modes included per participant (e.g. handheld, mounted ipad, voice control).