Lucius Fox: [Bruce points to the Tumbler] The Tumbler? Oh you wouldn't be interested in that.
[Cuts to Bruce test driving the Tumbler on an indoor course, with Fox in the passenger's seat describing the vehicle]
Lucius Fox: She was built as a bridging vehicle. During combat, two of these would jump over a river, towing cables. Over here on the throttle, flip that open and throttle up. This will boost you into a rampless jump.
[Bruce goes to flip the throttle]
Lucius Fox: Not now! Not... not now, Sir!
[Bruce flips it back]
The Tumbler: Afterburner disengaged.
Lucius Fox: We never could get the damn bridge to work, but this baby works just fine.
[Bruce brings the Tumbler to a stop. He is very impressed]
Lucius Fox: So what do you think?
Bruce Wayne: Does it come in black?
Probably the best scene to introduce the tumbler. My favorite line is when Bruce asks "Does it come in black?" and then in The Dark Knight Rises Lucius shows Bruce The Bat and he tells him yes mister Wayne is does come in black. Lol.