While only slightly different in appearance from its Halo 1 forebear, the Ghost in Halo 2 is also actually quite different. Like other vehicles, it is now partially destructible. Rather than a single explosion that renders the vehicle unusuable and the driver dead, like other vehicles, the Ghost can be wrecked in stages.
It also has the boost feature, activated by using the left trigger; this causes the Ghost to accelerate faster, but the twin plasma cannons cannot be fired in this mode.
The ghost can also be "boarded", allowing other players to approach it at a low enough speed, eject the driver and take over the vehicle, TJ-Hooker style.