I can load enough fuel to finish a 50-lap Grand Prix length race. Whats up with that?
The Milano full race length of 50 laps was selected to provide a reasonable race duration for the “short” and “long” events. The vast majority of all GPL races are run at one of these two lengths. If a number lower than 50 is used, the “short” and “long” races are completed too quickly. If you want to run a full Grand Prix, you’ll have to edit your 67season.ini and gp.ini files to reduce the number of laps. For reference, most of the real Monza events run over the full 10km were between 50 and 80 laps in length. However, in 1961 (the last year that the full 10km was used), the length was reduced to 43 laps. The GPL cars can all complete a 43 lap event, so that’s probably the number to use.