@StopthePropaganda
Quite right re the motorbikes. I ride a motorbike myself, a little Yamaha XT225 "chicken chaser" which is small, light, economical on the fuel, very manoeuvrable around town, easy to park and can even manage a little over the open road speed limit should I want to take a ride out of town. For that bike, I require a motorcycle licence. My flatmate has a little moped which is even lighter and more economical and all you need is a car licence to ride it.
I commute to and from work on my chook chaser, fair weather or foul, and shamelessly (but carefully) lane-split between scores of cars - most leaving the same approximate location in the 'burbs, most heading for the CBD and most have only the driver in them. So we have scores of people inefficiently shifting a ton or more of metal between the burbs and the CBD in order to move one relatively small human.
Sadly, Hamilton has only three free motorcycle parks in or near the CBD and if you ride into town most nights the one close to all the clubs and pubs is invariably being used by some immigrant taxi driver as an unofficial taxi stand to get drunk fares. Regrettably, the law does not allow us to punch the park-stealing shit in the face and the Shitty Council does not enforce the "Motorcycles Only" restriction. Park your car or bike in a marked taxi stand for thirty seconds and you'll get a parking fine and be beaten up by half a dozen taxi drivers.
Pan our POV south to our fair capital, Wellington, and you find not only a reliable electric rail system (called "the Unit") from the outlying townships into Wellington Central but an electric tram network through Wellington and every 4th or 5th parking slot in the CBD is given over to free motorcycle parking - rigorously enforced.
And those bike parks are *used*! Dozens of bikes standing side by side denoting dozens of people who elected not to bring an unnecessary ton+ of metal into town.
The Unit and the trams are also used. They also have longer-range buses between the burbs and the CBD that enjoy a good trade. Wellington is not as crowded as London or New York or even Sydney, but its crowded enough that people actually look for solutions for transport and the council is forward thinking enough to supply the infrastructure - public transport, motorcycle parking and reserved "express" lanes.
Even as far out of Wellington as Plimmerton there are lanes reserved for buses, taxis, cars containing more than 2 people and motorcycles. All the arrogant greedy pricks travelling alone in a car have to crawl along in the slow lane while the public transport, car poolers and bikes flow past them - and good fucking job, too.
Seriously. You don't need a ton of sedan or 2.5 tons of SUV to move merely one person 6km from the 'burbs to the CBD.
OK, we bikers are not stupid, we do understand that car drivers are pansies who can't stand getting their wittle clothes wet when it rains but, for fuck's sake, there are buses available and it doesn't take much to organise a car pool with your neighbours - they can't ALL be frothing maniacal axe-murderers.
Little city cars like the ones in the article could be of some use in some locations if the system was set up properly but not everywhere would be suited to such a system.
A system like Wellington has where there are incentives to car pool, use public transport or ride a bike is far more portable and scaleable - they could even do it here in Hamiltscum if the Council members pulled their heads out of their arses.
Most towns have multiple lanes on major roads - usually all packed with cars crawling along and their single occupants getting infuriated with all the traffic and not realising they're part of the problem. Those who have elected to car pool or are taking the car because they have three kids to get to school/kindy/day-care on the way are stuck in the same mess. The real bikes are lane-splitting with varying degrees of care, the mopeds are in the bicycle lanes and the buses are caught in the middle of the mess.
That's how it is in Hamilscum, anyway, YMMV.
It wouldn't be difficult to nominate one lane for public transport, car poolers and bikes and leave the remaining lane(s) for the selfish pricks to fight over.
Turn every 4th or 5th roadside carparking slot into free motorcycle parking (of course, our thieving council would have to put up the prices on the remaining metered parks as they wouldn't be able to handle losing the revenue from the reassigned parking slots) and you're well on the way to less congestion, improved traffic flow and lower pollution as people rush to car pool, use the bus or get a moped.
That could be done to pretty much any moderate to enormous city anywhere in the world. No need for any fancy "revolutionising" through implementing shopping-trolley cars and the necessary infrastructure, just a bit of reorganisation of the existing infrastructure - lanes and parking slots.
Instruct your parking wardens and police to enforce the parking/lane usage mercilessly and it'd be a nice little earner for the first few months - until people learned to obey the rules for the sake of their wallets. The fines should pay for the new signage and road markings within a couple of weeks...