It was a question, not a point. I was happy to see Tim Horton's all over last time I was out there though. I am a fan.
Wasn't trying to be a DB, I just wasn't quite sure what you were asking. One thing you have to recognize with Michigan is communities started out as 6 x 6 mile townships. Yeah, not much different than most of America, including Iowa, but the difference is townships are still a very real thing here (in fact, I live in one - Macomb is a township). Michigan even has this unique thing called "charter townships", which is an organized community somewhere between a township and a city (up until a year ago I lived in a place called Charter Township of Clinton - it has a population of ~100k).
Anyway, back to Auburn Hills - yes, Auburn Hills and Pontiac are neighbors - Auburn Hills kind of wraps around Pontiac on the east and north sides. They both came out of what was once called Pontiac Township, founded in 1827. Pontiac incorporated as a city in 1861. However, it wasn't the entire township that became Pontiac. That didn't stop Pontiac annexing land from the township over the next 100 years. Over those years Pontiac and Pontiac Township became two separate communities (Pontiac Township containing a village called Auburn Heights, incorporated near the same time Pontiac was incorporated as a village in the 1820s). In 1978 Pontiac Township became Pontiac Charter Township to prevent the city of Pontiac from annexing any more land (one of the distinguishing features between townships and charter townships is charter townships have more legal rights). In 1983 Pontiac Charter Township became Auburn Hills.
And yes, one of the gifts to the world that Canada has given us is Tim Horton's. I'm kind of "whatever" on their donuts, but I love their coffee and they have a really good lunch menu.