[switchlanez]

If the 215 tire GR car lapped Tsukuba faster than the 235 tire 14R60, it's counter-intuitive that TRD selected wider 265s for the Griffon 86 to set a Tsukuba record. Especially if all that friction from tire width + even more friction from Newtons of downforce slow down acceleration.

There are other non-tire differences between the GR and 14R60 that invalidate a straight comparison of tire width. Maybe if the 14R60 were equipped with 215s, it would lap slower. Likewise, maybe 265s work better collectively with the Griffon's specific mods so TRD eliminated 215s from selection.

X tire is the best. Caveat: Only on Y track with Z mods. Change any variable and it no longer holds true. Don't only scold people for not using 215s. You must also scold them for not having specifically 0 other mods and not driving on a specific road/track with specific angles and specific speeds and specific number of corners and specific length of straights and specific road texture and specific climate (205 is proven better!! ...in snow). If any of these change, you can't scold them. Only scold them for being outside a specific use case and non-stock configuration. Because users on an American forum site frequently race on Tsukuba and overwhelmingly leave everything stock on a platform built for and by tinkering car enthusiasts! (86 Chief Engineer and team flew to SoCal to define ideals for conception years before 2012 launch by speaking with Club4AG/car enthusiasts so they partially built it.) Like I said in the other thread, this is an academic argument over minutiae.