Is it a lap or a race?

Just wondering what some of your thoughts are in an open track scenario where you run cars four+ times down the hill. What do you call one time down, a "Lap" or a "Race" and why? Feel free to get technical or as philosophical as you like.
Discussion
For me depends on the race and scoring format.
For my Nascarnage series, where you finish each race/lap becomes your start position for the next one, so that I treat as laps. For standard rotate start positions, I tend to go with race.
- I've thought of it this way too, position rotation is more in line with a race, where as a lap would maintain position on the next one. — AP3_Diecast
I am on my First hosting but Never though about it. I do say Laps in my mind, the full four laps equal one Race as the top two advance. one on one is best of 5 and a four car Race is done with Scoring points for total after four races two top advance. Hence a Race.
I would have to say that time trials are generally done as laps, Head to head races Or 4 way races would generally be considered heats as the overall competition would be considered the race. Just my thoughts.
I normally call it a race, when racing on my private track. I don't know why, I've just always called it a race lol
I race 4 cars 4 LAPS that equals one heat. The hole video is one race. That's just how I say it. It's kinda like saying I will have a pop. Some say I will have a soda. Lol
Just my opinion......I call it a "heat"......but it isn't actually the perfect definition of what a heat is.