Velocette Venom Clubman Episode: 1.07
Velocette Venom Clubman chase
It is a Velocette from the last few years of production. This one looks to be a Venom Clubman like this one - Link to "www.vintagebike.co.uk" Probably not often seen with a sidecar.
BMW R80RT Episode: 1.11
Looks more like a BMW R80/R100 RT to me...
Yes, clearly BMW.