Nice timing.
I just directed this race yesterday using Bob.
I used the black beauty Nissan 390 with Turbo upgrade. I didn't want to use the Toyota, Pescarolo, R8, Speed 8, or any of the fastest race cars b/c I thought it would not be very close with the Turbo advantage. My competition was Nissan 1989, Audi R8, Pescarolo 2004, Corvette C5R and another 390 in baby blue.
Things started out well with an oil change just 50 miles ago. I ran the car in Speed 4, Overtake, and 3x viewing speed. I set the transmission to 15 I think with no tricks. ... ran out of RPMs about 75% down the back stretch and bounced from about 232 to about 220 at that point and back on up.
I used SuperHard rears and Hard fronts until lap 224 when I switched to Hard/Medium for the last seven laps.
Bob pitted my car at lap 17, while my main competitor, the 89 Nissan, pitted on 14 I think. Good sign I thought.
I was running 1:18 and 1:19 laps except for the first lap out and sometime the last lap before pitting. The Nissan was matching me, or else about a quarter second slower per lap.
I left with the family for church and came back at about lap 160. The Nissan 89 was now in the lead, and my Black Beauty, having lost its oil change power, was running mid 120.1 to 120.8. The loss in oil cost me about 2 seconds per lap speed.
What to do... what to do??
I switched to speed 5 'overtake' on the Bob speedmeter. That caused my car to pretty much match the Nissan 89's laps, but I was 55 seconds behind, but I had one pit stop less to go than he did. so call that a 20-25 second disadvantage, and with matching laps, I didn't think I could win.
Then I realize Bob would lose about a second on the turn at the end of the straight, and again another second on the esses just before the back straight. bob would lose the rear outside wheel onto the soft stuff which slowed him down. So the last 20 laps or so to go out of 228, I switched the Bob speedmeter to 4 manually at the end of the stretch, and going into the esses. This saved on average over a second each lap from clumsy Bob.
The last thing I did, and this might have been a mistake, is calculate my pitstops from 160 to 228. I somehow ended up calculating I'd need to pit at 226 with red hots, so decided to take over pit strategy from Bob, add one pit stop, pit after 16 laps instead of 17, and upgrade to Hard/Medium tires for laps 222 - 228.
During one two lap period, I accidentally had Bob driving speed 5 "push" instead of overtake. It cost me about 8 seconds pushing the C5R though the back half of the course. This was about lap 215, and I thought that it was all over. Over 20 seconds down, with Nissan 89 and me both with one pit left, and matching lap times. But, I noticed my speed changing from 5 to 4 at the two spots I mentioned had me gaining almost a second vs. the Nissan 89 each lap...
Finally, lap 221, I'm upgraded into Hard/Medium tires. By lap 223, I'm turning 116.8 second laps, gaining almost two seconds on the Nissan who is still running about 118.5 just like the entire race.
Lap 228, I'm trailing him by 3 seconds at the end of the back stretch. I'm still a second behind out of the esses. But Bob doesn't let me down... he catches the Nissan 89 about 100 yards before the finish line and I win first place by 0.8 seconds, and grab my prize Nissan 92C and jump in for a ride.