Questions about F1-02

[skankerror]

I've got a question, in f1-02.car I can read this :

Code:

[fuel-tank]
position = -0.00, -0.30, -0.30
capacity = 180
volume = 76
fuel-density = 0.8

What are the units used here ?

For example AX2 has :

Code:

[fuel-tank]
position = -0.17, -0.26, -0.56
capacity = 0.0492
volume = 0.0492
fuel-density = 730.0

This is not at all the same units, but they're all version 2 of car file.

I looked at the weight of F1, without fuel (I don't know how to calculate his weight) its mass is 531 kg, far from 673 kg in the comments.

Another things, sometimes at 1st speed (and only at first speed), throttle is getting crazy, if I push my pedal too quickly and release it, throttle stays at fool. Someone saw that too ?