Problems MOD 1993

Hello everyone,
I have two problems with 2 MODS 1993
On that of F1_1993, the cars remain white despite having everything highlighted high in the graphics.
On the MOD 1993 BY GP4 CENTRAL, it is the track marshals who intervene far too quickly and as soon as it goes off the road the car does not start again and sometimes I finish the races with only 3 or 4 drivers.
If you have any solutions I am interested and thank you.
Sorry for the mistakes but I use Google translate
Good day.

Concerning white cars

open configuration file on GP4 directory: graphics.cfg

change the following parameters

0 ; Texture quality : 0 => max 2 => half 4 => qtr 8 => eigth
1 ; Increase car texture quality (1 on, 0 off)

Good morning,
Thank you for your response, it works.
For MOD 1993 BY GP4 CENTRAL these are in fact the cars which do not restart after leaving the track or spinning.
Good day