The most members online in one day was 234, 05-13-2009.
01DTS, 02BlueGT, 02SSEi, 1000hpSupra96, 10secsomeday, 1fastrock, 1FastWS6, 99PONTIACGP, am_muscl, Angus, Atomicles, azangoat, b00ya, Bad00SS, bdyman, bigmac15, bigshotsho93, BillyBru, blowngp3, Bones, BOOSTD, BoostD00GaGt, Boostdelinquent, Bru, buckleupkiddies, budsang1, burtgtp1973, cacicgtp7, Chrisco, DarkShadow, Dasfinc, DIVINE, dmc6996, DOC-Z, Double D, DTB_LS1, duramax302, E, Eagle, eckoxl, Edmond, espresso8097, evastos, FastKatt, firehawk896, firemandan1700, Fish, FormulaLS1, Freebeer187, Gav'sPurpleZ, GOLD 383, GraFFix, greasy, gtp02, GTPSleepr, GTwolf, HEAVYKEVY, HILROD, hitnrun, Hollywood 06 GTO, IDAFC21, ilikebmx999, importcrew, Jakeman17, JDHedman, JeremyCliff, Jizzums, Just Chillin, K0R3AN, KAR101, Krang, ktraver97ss, LS1MIKE, LS6PWR, ls6velless454, madscientist, Makdaddy, modern-muscle, Mook, mustangin98, Nightrunner, nmskull66, OMGaZ28, OneBadGTR, Oreif, Outlaw40, PANDA, Paulgtp, phat_ridegt, POS Neon, Primalzer1998, Rebel, red gtx, Ricky Gonzalez, Riski, rocket69GTP, Ron Vogel, Royalgtp, SaturdaysGS, sbguy06, Scgoaty, Shibby50, SHOmuff, sickmint79, silentd, silverbullet, SirMarco, SlowSilver04, SmokedOutZ28, Smokinhot00ta, smug_GXP, SnailblazerSS, ssal, stangchic, Stink Star Productions, STKoRn97, stsv, syP, The Beast, Theautoguy, theSVTkid, TinMan, tmbutitta, TommyGloves, tonys99gtp, TransHed, TraptPatriot, TURBOC1, Turbocharged400sbc, Turk, Vogz, vroom, Wessel@PAF, wildCOUNTRY, wombat, Xtant12, XxApollynxX, YoushallgoFo, Zenriddles