The beautifully snarky quip at the end of the pre-credits sequence.
Bond: Iíve evacuated the area. Ask the admiral where he wants his bombs delivered.
The scene that introduces Carver and some his immoral practices. While this helps set up how horrible he is, he still manages to pull a case of him being a jerk actually being funny.
Elliot Carver: Mr. Wallace, call the President. Tell him if he doesn't sign the bill lowering the cable rates, we will release the video of him with the cheerleader in the Chicago motel room.
Mr. Wallace: Inspired, sir.
Elliot Carver: And after he signs the bill, release the tape anyway.
Mr. Wallace: Consider him slimed.
Moneypenny has been on the phone to Bond, while Bond is in the middle of having sex. She gets him to acknowledge that the situation is urgent enough to justify speedy sex, if not to abort it entirely, then hangs up, turns around and sees M standing there.
Moneypenny: Don't ask.
M: Don't tell.
Bond becomes uncomfortable when he learns that M and Moneypenny know all about his past sexual encounters. "I didn't know that was public knowledge."
Aaand then we see the car itself; When the car stops in front of Q and Bond, its engine almost makes a satisfied purring sound! Clearly Bond's sex appeal isn't limited to human females as the car does indeed respond positively to his touch. With regards to his "bossy" car, Bond later tells a valet at Carver's party, "Don't let her push you around."
The expression on Bond's face when he's being chased by SMG-toting guards, and he sees Wai Lin waving at him as he draws off the men who'd normally be chasing after her.
When various henchmen try to break into Bond's car, sledgehammers bounce off its armor and jamming things in the handles and gaps electrocutes the mooks. As a result, they call Dr. Kaufman - who has just finished spelling out how he's going to kill Bond to make it look like a murder-suicide - and order him to torture Bond into unlocking it.
The nonchalant shrug and smirk Bond gives at this point makes one think he knows how the next twenty minutes are going to go, as the majority of his Q gadgets for this film involve said car. Starting with how it's unlocked - his gadget-laden cell-phone. Instead of telling Kaufman the code to unlock the car, Bond tells him the code which activates the built-in taser.ZAP
...aaand segue into the big Chase Scene, which is equal parts awesome and hilarious.
"Warning. Unsafe driving will void warranty." Said as Bond is smashing through barricades and swerving around explosions.
"Reduce speed. Pedestrians in hallway." The "pedestrians" are Carver's goons who are trying to kill Bond.
Bond's reaction to the reinflating tires seems to suggest that he is well aware of how utterly kick-ass this whole thing is.
Bond has an Oh, Crap! moment when a goon is about to shoot his car with a rocket-propelled grenade... But then, because the BMW already has its windscreen and rear window broken, the grenade shoots through his car just fine, exploding instead at the chase car behind the BMW. Bond's face pretty much says this: Well, that works, too.
The look of unabashed glee on Bond's face as his BMW flies through the air and crash-lands into an Avis office, the same company he supposedly rented it from.
There's a deleted scene where a group of rubberneckers have crowded around the crashed car. Bond walks through them and tells the Avis agents that the keys are still in the car.
When Bond and Wade are getting the stolen GPS unit checked out, Bond and Wade share a silent look about their chosen attire (Bond is dressed as a formal military officer, Wade is in casual attire wearing a Hawaiian shirt). Wade lamely straightens his shirt in an effort to make himself look better.
The Oh, Crap! reaction of Wade and the U.S. military personnel when they realise they're dropping Bond in equipment festooned with U.S. government markings into what is technically Vietnamese territorial waters.
Stamper speaking glowingly about Dr. Kaufman and his work with the worst kind of torture imaginable. Just the way he talks about him as though he were a great humanitarian is hilarious.
After Carver elaborates on how Bond will be tortured, Bond's witty reply is, "I would have thought watching your TV shows was torture enough." Wai Lin is barely able to conceal a chuckle.
Bond and Wai Lin squabbling over who gets to drive the motorcycle as they're escaping from Carver's mooks. For the "suave" Bond, Pierce Brosnan really know how to do hilariously bitchy arguing well.
Bond's suggestion that he write to the British and Chinese governments informing them of Carver's plans wins him an amused grin from Wai Lin when he sees that the computer terminal in the hidden armory is all in Chinese characters; he lets her do the typing.
When he inadvertently fiddles with the various gadgets stashed within Wai Lin's safehouse, many of them similar in nature to Q branch's many inventions, and yet Bond is somehow caught off guard by each one of them. He seems more amused than shocked by a couple of them, even cracking a pun at one or two, but when he accidentally sets off a flamethrower mounted in a dragon's head, he actually yelps in shock.