Every now and then the engine sounds very dry & rough. Othertimes quite smooth & pleasant :) Almost like there was a small hole in the exhaust. (but I discounted that after a quick listen with windows down). It last sounded dry with two adults & pre-teen in the car in rush-hour traffic going up an incline. As soom as they were dropped off, and the traffic died down a bit - it sounded sweet again. Anything to worry about or just driving conditions?
Oil changed a month ago.
Lordy