I have looked a little bit through my books and I also think that it is one of the big Apollos, probably a Typ N 8/24 PS, a Typ K 10/30 PS or a Typ L 13/40 PS. The Typ F 8/28 PS, which was rather a sports car, is another possibility. Anyway, the point is yours. Unfortunately I don't know who is at the wheel. The pictures were taken in 1912 in Frankfurt a.M..