Again, no official times. Good luck hitting a 7:28 in street trim. Yes weight matters in any race. If your an instructor and you dont know that you should quit. Because, weight going into a turn means nothing. Surely then slowing down a heaver car means nothing, and getting it back up to speed means nothing. Im willing to put a testicle that off the showroom floor that car never hits a 7:28. It will need racing tires, with weight mods and more power. You can claim an unofficial time all you want, but its still unofficial. For all you know that car can already be on racing tires and have 600hp with weight mods, for track purposes, like the skyline they made insane claims with, that turned out to be far from stock.