What kind of car did I see?

I was in traffic today, and beside me was a car, the likes of which I’ve never seen before:

-It had two wheels in front, but only ONE wheel in the back (in the center)
-It was very low to the ground (almost like go-cart level)
-It had no windshield or windows (open air), although it did have a bar across the top (sort of what it looks like when the T-tops or whatever they’re called are taken off a car).
-The driver was wearing a helmet.
-It went very, very fast.

What on earth was it?

was it any of these?

Perhaps a Trihawk?

http://www.3wheelers.com/trihawk.html

At any rate, there are several similar wheel designs. Have a look around that site.

Perhaps a Morgan three-wheelr, or a replica of one?

Yes! It looked almost exactly like the T-Rex (the photo of the red one). I could have sworn the sides came up further, but maybe it was just my perspective.

I looked at the other websites too. Where have I been that I never knew all of these three-wheeled cars existed???

It was a neat thing to see, though.