CSR2 Ford Restoration Cup with the Heritage GT purple star

I decided to try running the Restoration cup with the newly won purple star Heritage GT. Having made it through the Heritage GT's own cup, this car is pretty well built. What I found out was Natural Motion programmed this event to be challenging for whatever car you decided to go with. Which means, you need your car maxed, and even then the sprints are ridiculously hard.
0.685 0-100? Are you kidding me? Yeah, that is what I had to beat for race 28.