Hugh, I fully agree with your post.
Wow, I'd forgotten about some of these commercials. I unfortunately saw the incredibly cheesy commercial for the new Honda Civic hatchback which stress that the car has 201 HP and feature an Asian girl dressed like some sort of "ninja" driving the car, while an awful (IMO) song with lyrics saying "I'm a ninja" play in the background. I guess I'm not the target audience for that ad, but I have trouble believing that there is one.
There's a new Jeep commercial that talks about how the Jeep's posh leather interior is better than Lexus', but shows that the Jeep also has a terrain selector so that you can go driving in sand, and shows the car doing some underwhelming driving on a beach. Somehow I don't want my offroad vehicle to be luxurious.
While it was less impressive, the oldish Mercury Milan commercials with the Milan sliding/"drifting" into the frame sideways was cool. I know it wasn't a performance car, but I thought it was cool that they showed off what the car could do, even though I'd think that no one who bought a Milan would be the type of person who would try stunt driving in it.