The most members online in one day was 488, 05-03-2010.
///M3LVIN, "G", 1SickCoupe, 1sickek187, 91_two, 99-Si-LURV, A.M, AChan, adamj, aftershock141, alongcameTARA, alphaghost, AMD 240, anticlimactic, ApexsilverMR, Arat, arireyes, AtreyuEG, autowerks racing, awd_pwnz, Azul, bbs350z, beaker, Beatacoco, Beefy@ProjectX, Blackie, boochi, boostedMZR6, BoSsS, Bottlefedmr2, BuscarLo, caesarlikes, chi_z06, ChicagoISF, cibon7, crkt_rcr, dbski11, dc2, dc2_Fil, DeadChickenUpMyAss, defg746, DHOWIE03, DiamondBob, DIESEL_89, DirtyEP3, DJ_nYmFo_Chicago, drektek, drftx, DrKelso, DUAL_RTR, eamper, ecks, empco, evildnb, FAST4, Fezzik, ffswizzlestick, Flipside87, forcedinduktion, fretburnr, FusionR300zx, gbaby2089, GmoEM2, GOODFELLA M.A.I-V, Gortex, gotvtec1, GQQSE13, gray, Grip, Haze, iamiata, ih8winter, ill-z, illspeed, Intel, IrishCarBomb, ISjdm, J-SPX7, jae_rex, Jagerdragon, JamesT, jcm3, JDM King Koopa, jdmj914, JesusFast, jmk, joe, joe645733, Johnny Rocket, Juz10xD, K20Action, Killergsr, kristoper, krystar, kuhan, Kuro, L_Ron, Lateflip773, Lazyfong, Let it slide, LiftoffOversteer, Liquid_G, LongGrain, lumiester123, LUSTR, LuxLude, mak, MayhembB, mistuhez, Mk388Chris, moky, MonkeyKarma, MountainMan, Moy, Mr. Jackson, MrPhean, myacreative, mz3on18's, na_rsx, Nachtmensch, naoandlater, natedawg, natetwo3, Necos07, Ni55anPat, Night_Crawler, NooLifeKing, OmegaKnight, Oo Its Ralph & his Z, ookimchiboyoo, oolatec, OWTKAST cpt, p0tential, pecka13, pill pusher, projekt_shocker, Push, Raikiri, Rajca, Rayn, RaZR LinkZ, reika7, Revue, Rey, rey rey, Rican_wagon920, RL Chi-Town, RobSE, rockvr4, roflitzjinno, s203, saedrin, saiyajinimports, Sergio187, Shane, sideways, Silentalero, SimpleMan, SimplyPinoy, Skyflakes, slantgotsole, Sleeper_Z, slim8605, Slow_Silvia, somejaykid, splitime, spotmy4, sqsi, stEEZE nikkAA, Steeze_Its, Steezy, Stewiefied, Supraman127, synth19, System Lord, takumi dc5, ThEvil0nE, timmuh, toast_, torquem90, TouchMyHonda, truejee, TSX 'R' US, TurboLag, TurTLe*, Unscene, VNoh NHBP FA5, w8lifter21, wanna b, wildabeast, Willby24, xLaroldX, yellowxhoodie, yonwd, yuri-ah, z_speed, zandman, zek735, ZEUS'G35, zweetz32

Rayn, NiSM0MiK3 (20), RUMRUM2 (19)