@TJ13 The problem is that I am out of home for the Summit duration, have just 28th, 29th and maybe part of 30th to do something.
Already reported on Steam Discussion:
"I was driving today to upgrade the Drag spec on my RUF CTR-3, in the new Summit qualifier event, all day long.
After awhile I noticed that my times changed in both positive and negative ways after I changed parts with new ones. Mostly, I noticed that changing a lv41 platinum engine with brake bonus to a lv45 engine with grip bonus made me get +0.400 from the previous run.
I was like "what is happening?" and then being more cautious if this was going to happen again. And happened first in a improvement and then in a new worsening. When this happens, either way, there is a huge change in the gear ratio, meaning that (in best performance, comparison to worst performance) 3rd to 4th upshift is around 10 km/h higher and the car handles 560 km/h with a possible top speed (delaying Nitro) of 575 km/h versus a barely 540 km/h handle and a possible top speed of 563 km/h.
Wish to ask what is this bug and how can I work around? Or it is the car bugged and have to wait for a fix or swap to another in the meanwhile?"