Maybe he just found himself in the wrong lane and rather than turn directly from the wrong lane, like most BMW or Audi drivers would do) he did the sensible, safe and legal thing?
Van with coinford.co.uk on the back, terrible driving! Forced way past me down a 1 lane slip road, squeezed past a lorry at the bottom of the slip road onto the roundabout and tried to jump past and leave at exit 1. Failed to get round the lorry then blocking the rest of the roundabout while waiting for the lorry to take the exit.
Followed for a further 3 miles where the van was slinging it round the roundabout, using the wrong lanes and generally driving in a dangerous manner!
Maybe he just found himself in the wrong lane and rather than turn directly from the wrong lane, like most BMW or Audi drivers would do) he did the sensible, safe and legal thing?