Yep, I think we should have someone in the van nearby, engine on and ready to go. I'll take the bike, whoever isn't driving the van rides pillion with me. When we spot the target at the tram stop we get on the comms, the pillion passenger hops off + does the hit as the van gets into position.
We load him into the van, passenger jumps in the van and then the bike and van break in separate directions to force any tails to split their efforts. If we're slick, we could be away and done in 30 seconds. Thoughts?