Morning car make tally

Now that I carpool, and I’m a passenger rather than a driver every other day (which is brilliant, by the way), I am afforded certain boons. Specifically, I can not pay attention to where I’m going and simply watch the car pass things and be passed by things. When I was smaller, I’d take such opportunities to see what people were driving, and I chose to try that again this morning.
A few notes: this is totally unscientific; if I see a car on the road and recognize it, I make a tally. This can get hectic in built-up areas, so I limit my tallies to the largest automakers – the Detroit 3, the Japan 3, and the VW Group. I threw BMW in there because there are a lot of them in the Delaware valley, far more than Mercs. All other indie brands (Subaru, Mitsu, Hyundai/Kia, etc.) were not included this time.
Location: Greater Philadelphia
Roads: Green Lane; I-76W; I-476W; West Chester Pike
GM – 41
Ford – 41
Toyota – 39
Honda – 37
Chrysler – 17
Nissan – 16
VW – 12
BMW – 4