That's probably for the best dude. I wouldn't want to be driving a heavily repaired car at the track. Also I hope your neck is feeling better.
If the other driver's insurance is paying, they are responsible for any upgrades you made to the car. So if there are any aftermarket parts you would do differently now or aren't worth much if they can't be used on your next car, you can leave them on and make them pay for them.
I was impressed by Traveler's back in the early '90s. Some idiot plowed hard into the back of a line of cars at a red light. So about 10 of us ended up against each other. Law says car behind is assumed responsible for damage to car ahead. People in the line ended up paying for the car in front rather than going to court to prove they didn't hit the other car before the guy plowed into the rear most one. The car in front of me had Traveler's and they said they wouldn't make me fight that.
I get vibration >80 mph which has been a bear to tune out through rotating. After I got my clutch replaced, out of sheer luck my mechanic got the shaft clocked with the least vibration ever. I'd get another brand in hindsight.
I am not impressed by the 2018+ Mustang and frankly hate the front end, so that's not high on my list. I can't say I'm craving another 2016/2017.
