Why it matters, I do not know ...but yes, I have run a 4000 pound plus car, street car actually. I added 200# to my 3800# car just to see how much it slowed it down. It went 9.70 w/ an extra 200# in it. CHIP

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax