Those are lap records of all jcca cars/classes including gtrs and 240z.
Many people are not aware how quick this b110s and b310s are !!!
Have a look at the website link i provided and Maybe use google translator.
Also another interesting thing i came across is that the a12 powered cars are quicker than the a14 powered cars..No idea why but my guess would be the weight difference?
Quote:
Tsukuba best time
Class Saddlecloth Driver Car's name Engine Displacement Time BT date
TS-1 Nine Koichi Sato Racing Forge Moon Sunny A12 1298 1'02.779 2014.7.6
TS-2 twenty five Sakamoto Kei也 SPM Komine Tsuchiura Akutsu Works Sunny A14 1508 1'04.193 2014.10.26
Fuji best time
Class Saddlecloth Driver Car's name Engine Displacement Time BT date
TS-1 Nine Koichi Sato Racing Forge Moon Sunny A12 1298 '1'57.585 2014.4.13
TS-2 51 Satoyama Tsutomu SASAKI jewelry Samantha Sunny A14 1508 1'59.972 2008.4.13