What I like most about driving in Britain are the round-abouts. We have very few here in Southern Cal.
You guys in SoCal have those stop lights *on* the entrance ramps to highways, er, the freeways...
My town, Sedona AZ, is experimenting with roundabouts in a major way. Nine of them are being built to replace major intersections that once had signals. One of the first to be completed, several months ago, is right outside my complex. The big advantage: the roundabout is much quieter than the old signalized intersection at night, when most traffic just glides right through. The big disadvantage: the roundabout is noisier by day, when there is a constant chorus of honking as local drivers tangle with tourists who are clueless on how roundabouts work.
I spent some time in England in the early 90s and round-abouts are great, once you get the hang of them. Doesn’t take too long. But people can mess them up if they are distracted or not paying attention (just like regular driving and stopping).
They save a lot of time waiting for nothing.