I suppose it's the the very first... A 1901 sunbeam 2-3/4 HP I don't know what they mean with it but I've got a poster filled with only sunbeams from 1901 till 1970 as introduction year of the cars.
I like a car that looks normal but really knocks your socks off!!
A while ago now i visited the Black Country Museam, which by the way is a pretty good day out, well worth a visit. They had a small Sunbeam stand with an old example of a Sunbeam - not sure what it is, with only 3 wheels and looks something between a bike and a car. They also had some posters to read a little about the marque.
ps hope the pics are clear enough to read from Enjoy!