Upon taking a test drive in a brand new 2020 Rav4, there was a strong burning smell inside the cabin and also outside of the car. Dealership personnel confirmed this and briefly investigated without identifying the problem. An hour later, upon taking a second test drive, the smell was not present. What might have been the reason for the burning smell? Should I be concerned about there being some unseen issue with the car that might cause me trouble later on? Thanks!