AC time trial server is currently running Nordschleife Tourist with the Viper ACR and the R34 GT-R.
Required DLC and mods are below if you're missing anything.
server: vrg time trial
pass: tfwnodriftfu
mods: https://mega.nz/folder/51UwSJ5L#yojjZdETcm95G2DMdKzSBQ
DLC: https://mega.nz/folder/BBwxhS6D#4jJIfs6omnJUaJfsnqPqGQ
leaderboard: http://198.23.223.127:50041/lapstat
>>356120226
Yeah, the ACR is great.