These are the boxes that arrive at your favorite retail store. Note that the two letter designation after the main code probably indicates a varaiation in the contents. Here's what we've found so far:

#G7784-999A ?? includes:
▪ 3 Battle Spec 5 of 9 (Teku)
▪ 3 Synkro 3 of 9 (Teku)
▪ 3 Power Rage 6 of 9 (Teku)
▪ 3 Hollowback 5 of 9 (Metal Maniacs)
▪ 2 Rivited 4 of 9 (Metal Maniacs)
▪ 3 Rolling Thunder 6 of 9 (Metal Maniacs)
▪ 2 Jack Hammer 9 of 9 (Metal Maniacs)
▪ 2 RD-06 6 of 9 (Racing Drones)
▪ 3 Nitrium 2 of 9 (Silencerz)

#G7784-999E ?? includes:
▪ 2 Battle Spec 5 of 9 (Teku)
▪ 1 Drift Tech 2 of 9 (Teku)
▪ 2 Power Rage 6 of 9 (Teku)
▪ 2 Bassline 9 of 9 (Teku)
▪ 2 Rivited 4 of 9 (Metal Maniacs)
▪ 2 Rolling Thunder 6 of 9 (Metal Maniacs)
▪ 2 Spine Buster 7 of 9 (Metal Maniacs)
▪ 1 Rat-ified 8 of 9 (Metal Maniacs)
▪ 1 RD-01 1 of 9 (Racing Drones)
▪ 2 RD-02 2 of 9 (Racing Drones)
▪ 2 RD-03 3 of 9 (Racing Drones)
▪ 2 RD-09 9 of 9 (Racing Drones)
▪ 1 Anthracite 3 of 9 (Silencerz)
▪ 1 Accelium 7 of 9 (Silencerz)
▪ 1 Metaloid 8 of 9 (Silencerz)

#G7784-999F FA includes:
▪ 2 Battle Spec 5 of 9 (Teku)
▪ 2 Synkro 3 of 9 (Teku)
▪ 2 Power Rage 6 of 9 (Teku)
▪ 2 High Voltage 7 of 9 (Teku)
▪ 2 Bassline 9 of 9 (Teku)
▪ 1 Rat-ified 8 of 9 (Metal Maniacs)
▪ 2 Rolling Thunder 6 of 9 (Metal Maniacs)
▪ 1 RD-05 5 of 9 (Racing Drones)
▪ 2 RD-10 8 of 9 (Racing Drones)
▪ 2 RD-02 2 of 9 (Racing Drones)
▪ 2 Octainium 1 of 9 (Silencerz)
▪ 2 Carbide 5 of 9 (Silencerz)
▪ 2 Technetium 9 of 9 (Silencerz)

#G7784-999G GA includes:
▪ 2 Battle Spec 5 of 9 (Teku)
▪ 2 Reverb 1 of 9 (Teku)
▪ 2 High Voltage 7 of 9 (Teku)
▪ 1 Bassline 9 of 9 (Teku)
▪ 1 Power Bomb 1 of 9 (Metal Maniacs)
▪ 1 Rivited 4 of 9 (Metal Maniacs)
▪ 2 Rolling Thunder 6 of 9 (Metal Maniacs)
▪ 2 Rat-ified 8 of 9 (Metal Maniacs)
▪ 1 RD-05 5 of 9 (Racing Drones)
▪ 2 RD-03 3 of 9 (Racing Drones)
▪ 2 Nitrium 2 of 9 (Silencerz)
▪ 2 Carbide 5 of 9 (Silencerz)
▪ 2 Covelight 6 of 9 (Silencerz)
▪ 2 Accelium 7 of 9 (Silencerz)

#G7784-999G GD includes:
▪ 1 Reverb
▪ 1 Drift Tech
▪ 1 Synkro
▪ 1 Power Rage
▪ 2 High Voltage
▪ 1 Power Bomb
▪ 2 Hollowback
▪ 2 Rat-ified
▪ 2 Rollin' Thunder
▪ 1 RD-01
▪ 2 RD-02
▪ 1 RD-06
▪ 1 RD-09
▪ 1 RD-10
▪ 2 Octanium
▪ 2 Carbide
▪ 1 Covelight
(thanks LincolnLogger for this case info)

#G7784-999H HB includes:
▪ 2 Synkro 3 of 9 (Teku)
▪ 1 Reverb 1 of 9 (Teku)
▪ 1 Rivited 4 of 9 (Metal Maniacs)
▪ 1 Piledriver 2 of 9 (Metal Maniacs)
▪ 1 Hollowback 5 of 9 (Metal Maniacs)
▪ 2 Rollin' Thunder 6 of 9 (Metal Maniacs)
▪ 2 Flathead Fury 3 of 9 (Metal Maniacs)
▪ 2 RD-01 1 of 9 (Racing Drones)
▪ 1 RD-02 2 of 9 (Racing Drones)
▪ 1 RD-10 8 of 9 (Racing Drones)
▪ 1 RD-09 9 of 9 (Racing Drones)
▪ 2 Anthracite 3 of 9 (Silencerz)
▪ 1 Accelium 7 of 9 (Silencerz)
▪ 1 Metaloid 8 of 9 (Silencerz)
▪ 1 Iridium 4 of 9 (Silencerz)
▪ 2 Nitrium 2 of 9 (Silencerz)
▪ 2 Octainium 1 of 9 (Silencerz)

#G7784-999J JB includes:
▪ 2 Reverb 1 of 9 (Teku)
▪ 2 Bassline 9 of 9 (Teku)
▪ 2 SpecTyte 8 of 9 (Teku)
▪ 2 Chicane 4 of 9 (Teku)
▪ 2 Battle Spec 5 of 9 (Teku)
▪ 1 High Voltage 7 of 9 (Teku)
▪ 2 Rat-ified 8 of 9 (Metal Maniacs)
▪ 1 Power Bomb 1 of 9 (Metal Maniacs)
▪ 1 Piledriver 2 of 9 (Metal Maniacs)
▪ 1 RD-05 5 of 9 (Racing Drones)
▪ 2 RD-08 7 of 9 (Racing Drones)
▪ 1 RD-06 6 of 9 (Racing Drones)
▪ 1 RD-04 4 of 9 (Racing Drones) (or maybe another RD-06)
▪ 2 Accelium 7 of 9 (Silencerz)
▪ 2 Technetium 9 of 9 (Silencerz)

#G7784-999K KA includes:
▪ 2 Anthracite 3 of 9 (Silencerz)
▪ 2 Carbide 5 of 9 (Silencerz)
▪ 2 Covelight 6 of 9 (Silencerz)
▪ 2 Accelium 7 of 9 (Silencerz)
▪ 1 Metaloid 8 of 9 (Silencerz)
▪ 1 Iridium 4 of 9 (Silencerz)
▪ 2 Rollin Thunder 6 of 9 (Metal Maniacs)
▪ 2 Spine Buster 7 of 9 (Metal Maniacs)
▪ 2 Flathead Fury 3 of 9 (Metal Maniacs)
▪ 2 Rivited 4 of 9 (Metal Maniacs)
▪ 1 Jack Hammer 9 of 9 (Metal Maniacs)
▪ 1 Hollowback 5 of 9 (Metal Maniacs)
▪ 1 RD-02 2 of 9 (Racing Drones)
▪ 1 RD-03 3 of 9 (Racing Drones)
▪ 1 RD-06 6 of 9 (Racing Drones)
▪ 1 RD-08 7 of 9 (Racing Drones)

#G7784-999K LB includes:
▪ 2 Carbide 5 of 9 (Silencerz)
▪ 2 Covelight 6 of 9 (Silencerz)
▪ 2 Accelium 7 of 9 (Silencerz)
▪ 1 Iridium 4 of 9 (Silencerz)
▪ 1 Technetium 9 of 9 (Silencerz)
▪ 1 Anthracite 3 of 9 (Silencerz)
▪ 1 Octanium 1 of 9 (Silencerz)
▪ 2 Battle Spec 5 of 9 (TEKU)
▪ 2 Hollowback 5 of 9 (Metal Maniacs)
▪ 2 Jack Hammer 9 of 9 (Metal Maniacs)
▪ 1 Rivited 4 of 9 (Metal Maniacs)
▪ 1 Spine Buster 7 of 9 (Metal Maniac)
▪ 2 RD-05 5 of 9 ( Racing Drones)
▪ 2 RD-02 2 of 9 (Racing Drones)
▪ 1 RD-10 8 of 9 (Racing Drones)
▪ 1 RD-08 7 of 9 (Racing Drones)

AcceleRacers car case (2005)