I'm struggling to get under 1:07 now... I honestly don't know what I'm doing differently.
edit: never mind, 1:05.68. Can't drop your speed too much on the last section.
I get how to cut your time even more. It's down to simple physics actually.
Pictures two cars traveling beside each other, both are reaching the finish line at the end of a 1000m straight road. Both cars are traveling at the same speed. If they remained at constant speed, they'll reach the finish line at the same time. If Car 1 decided to increase its speed and remain there, without a doubt Car 1 will reach the finish line before Car 2. But what if Car 2 decides to increase its speed by the same amount, but near the end of the race? Will the two reach the finish line at the same time? No, Car 1 will still reach the finish line first.
Because Car 1 is already traveling faster for most of the drive, it's going to be much further ahead than Car 2. If Car 2 wants to catch up, it will have to travel significantly faster than what Car 1 is traveling at. Don't forget there are limitations such as the car's maximum speed, as well as the remaining distance to go. If Car 1 was already traveling near top speed, then Car 2 has to travel faster than what it's capable of doing to catch up, and since it can't, that's an impossible option. The-now shorter distance is an unchangeable factor so nothing can be done there.
To bring that back into this scenario, if you've been traveling like Car 2, where you could've picked up more speed earlier in the race (using nitrous) but chose to reserve it until the end, then that's where you're falling behind. If ghost cars existed and you drove beside a ghost replay of my drive, you'll notice that my car is going to leave you behind and you won't be able to catch up. In other words, a change of nitrous management is needed.
This time, after the repair station, instead of stopping my nitrous at 305km/h (Car 2), I stopped at 320km/h (Car 1). This lets me travel faster until the next time I needed to slow down. Fortunately you can get away with the intersection in this event by keeping your cornering line shallow by riding all over the parking lot. I know the car' going to slow down with the last 3 bends so I use the rest of the nitrous in between each bend to reduce the amount of speed loss.
If you guys ever seen those marble slide diagrams, you'll get what I'm talking about.
There are 4 wooden tracks, all have starting points and ending points with the same distance to travel, except that all have different slopes. Let's focus on 2. One track is perfectly straight. It's sloped downward so the marble can travel at a constant speed to the bottom. The other one has a steeper slope right at the beginning, but the remaining 3/4 is less sloped that the previous track. If we put one marble on each track, which one would reach the end quicker? The answer is the 2nd track. Despite having a section that's less sloped, the steep section at the beginning lets the marble reach a higher speed quicker than the marble on the straight slope. That alone let the marble reach the end before the other one.
This isn't to say this is the way to go for every scenario. If that track was any longer and both tracks kept their slopes, the marble that was traveling down the constant slope would've out ran it past a certain point.