> Getting an ad for that specific model could also have been due to other online activity, such as checking the KBB I suspect op may have researched the car mo

> Getting an ad for that specific model could also have been due to other online activity, such as checking the KBB I suspect op may have researched the car model and got retargeted: some ad networks keep track of specific products you've shown interest in (not generic interest-areas like Google ads) and track you via a cookie. You may be visiting a completely different site that uses the same network, and get ads on the exact product you've spent minutes reading about.