did the 2 white cars know one another - did the smaller one brake check the van (the oddest thing in the clip) because he couldn't see his mate
need an option on dashcam to show speed (up to a capped 70mph) - it's difficult to judge motivations when you can't see if people(youngsters) are being very cautious about temporarily exceeding 70mph;
if they have a black box in the car, say, maybe you drive differently, well I might if I thought insurance might double if you exceeded limit.
No idea if they knew each other, couple of points I did wonder but that doesn't excuse the dawdling. They didn't brake check the van they just were all over the place speed wise and not giving enough margin when wanting to come back to lane 1 causing the van to drop their speed off to leave a safe gap - I have no idea why they even overtook the van, probably because it was a van and would "slow them down" in their mind despite they weren't really going any faster than the van before or after the overtake...
I've just got a cheap dashcam for the Qashqai which doesn't include speed as when I bought it I wasn't intending to keep it more than a few months.
Even with a black box no excuse for that driving as mentioned they were never at risk of exceeding the speed limit and plenty of margin for getting up to speed more briskly before you'd score poorly for acceleration.
Maybe I sound angry but more just find it perplexing - they were obviously not comfortable doing any faster than we were in lane 1 at the start so why put themselves in lane 2 it would have just meant they'd have to ease off slightly as they came up behind us just as the lights changed. And why not just get going as to my mind would be normal once in the NSL.