Are you trying to plot which property makes a car fast?
I am not sure what I am looking at here. Many numbers for sure.
Some random thoughts:
Races often already have some BOP applied, that makes it hard to compare.
Even if no BOP is used, the track, distance, mandatory pit stops etc might be chosen in a way to make it balanced. Typical example for TBO class might be that FXO is fastest but drivers eventually need to slow down to save tires.
Another idea:
Maybe try to figure out something about the difficulty/technicality of car/track combos by plotting a histogram of all uploaded times.
For example for XFG@Kyoto Oval I would expect that all the top times are very close to each other. On the other hand something like Fo8 at South City might have bigger gaps.
There might be a large plateau at XFG@Bl1 of newbies using default setups or other such things.
The ratio between "average speed" and "theoretical car top speed" (aka how much of a lap is at full throttle or high speed) could be interesting, too.
We know that Kyoto Oval is the fastest track, but which track is second fastest and which is the slowest?
(Also for different cars)
Mildly related:
Do you know of a way to get all WR times and their upload date?
It might be interesting to see how WR times have improved over time, how big the improvements were, which WR was standing longest until it got beaten etc.