The Space Marine Razorback is a light armored vehicle used by Space Marines in the Warhammer 40,000 universe. The original Razorback model was released by Games Workshop in 1994 for the second edition of the Warhammer 40,000 tabletop game.
Appearance-wise, the original Razorback was essentially a Space Marine Rhino with a turret. The original kit featured a metal turret consisting of a metal Space Marine gunner manning a combination lascannon & twin-plasmagun mount. Following the release of the Space Marine Rhino MkII, Games Workshop decided to update the Razorback in 1999 to use the new Rhino chassis. The current Razorback kit is based on the new MkII Rhino chassis. In addition to the new chassis, the kit contains plastic sprues for the turret assembly.
According to the background information, the Razorback was developed as a more-heavily-armed variant of the Rhino chassis that sacrifices a portion of its troop capacity for additional firepower. Weaponry that Razorbacks have been known to carry are heavy bolters,heavy flamers,assault cannons,lascannons, combination single lascannon with plasma guns, or multi-meltas. The weapons are mounted on a turret, manned by a gunner in third edition versions of the model but automated as of the latest release. Razorbacks are classified as infantry fighting vehicles, having the same purpose as the modern M2 Bradley IFV. The Razorback, along with the Whirlwind, is a post-Heresy design and is therefore not used by Chaos Space Marines. This explains why the Razorback has not appeared in any incarnation of the Chaos Space Marine codex.
The Razorback is one of the Space Marine vehicles that have not been extensively featured in other derivative media such as video games. In 1997, a Razorback model was released by Games Workshop for the Epic 40,000 (Epic 3rd edition) large scale battle tabletop game, which is a miniaturized version of the Warhammer 40,000 model and made of metal. Razorbacks also featured in Epic: Armageddon (4th edition). The Razorback has recently seen use in the Warhammer 40,000 Dawn of War II video game, published by THQ.