Actually, it was an attack roll (You're Gonna Kill Somebody: DEX vs. Fortitude, 5[W] +DEX, requires minimum 1-ton vehicle) using an Acura Sedan +5 (4d20, two-handed property), against a plate glass window (AC/Reflex 5; Fortitude 5; HP 100) with partial cover (giant tree out front):
SMACK!!!
Oh, I forgot to add the bonus to damage: 20d20 - 3 +5, so actually it's 1146 damage, not 1141...
Bye-bye, window...