idk theres a lot of videos out there by people who are really slow with the edits. its like, ok lets see something or hear something, its been a 30s already. Watch those top-gear videos, they're very tight, and you gotta give the audience something quick before they get bored. Luckily they have voice overs, but if you don't have that Britishness, then I always think throwing in some doc style chatter in there is always good. idk I say if your going to do these kind of videos, do it for a reason for people to watch it, rather than just images of the car.
while Im ranting, I'd just like to say lets keep the "somthing racing productions" intro shit to a minimum when it comes to roll race videos. Just show the names of the cars, and then the race, with music that is quieter than the original audio plz. So many times I find myself skipping ahead a minute just to watch the damn race. If its a real film production with some meaning to it, then fine drag it out, but simple videos need to be faster.