Tripmine

From MLGWiki

The Tripmine is a piece of equipment which can be dropped or tossed on to the ground or stuck to vehicles. After it is thrown, the Tripmine glows orange and emits a beeping sound which is easy to hear if on foot. When the Tripmine is triggered by walking over it, driving over it, or damaging it, it explodes with greater power and radius than that of a grenade. The explosion is fatal to players on foot and usually destroys vehicles as well.

Vehicles with a Tripmine stuck to them will detonate if the vehicle moves too fast.