On 6 Nov, 15:04, Neil Williams wrote:

It is a fact that a 4x4 causes no more of a traffic jam than a
normally-sized car. *A Land Rover Defender SWB, for instance, is as I
recall shorter and narrower then a Vauxhall Corsa.

Unfortunately a Land Rover Defender SWB is not representative of the
4x4 vehicles you see on the streets of London. Most 4x4 vehicles,
people carriers and other similar vehicles are that bit wider, longer
and higher and make a significant difference to other road users -
when parking, turning out of junctions, trying to move around in
queues, passing on narrow roads with parked cars. The other frequent
problem with these* is tinted windows that are too dark to see through
properly, so you can't make eye contact and you can't see through to
the other end/side.

* I know it's not only these types of vehicle that get tinted windows,
but it seems more likely - so that you can't see the little darlings
in the back, or can't see the £10,000 Rolex on the driver's wrist
(stereotypical but fairly tru-ish example reasons)