Vehicle began smoking on highway. No check engine or indicator of any fault codes. No previous coolant or oil leaks, or fuel leaks appeared to be visible or of issue. Vehicle had to be pulled over on side of highway as smoke began to became increasing with darker color from the engine bay, then making its way into the inner cabin Of the vehicle. Within a minute the full engine and front end of vehicle was engulfed in flames. Occupant was barley able to get out due to the vehicles dark smoke which caused disorientation for the driver. A good samaritan removed driver from vehicle and approximately 2 minutes later the entire car and cabin was engulfed in flames. Car was deemed a total loss with front end, cabin, and areas near the back seat/ window were burned to complete bare metal. Emergency personnel numerous times mentioned how lucky occupant was since these types of vehicle fires are typically fatal followed by the speed of fire it had spread throughout the process when engulfed.