Noted on 18 Aug 2026

Zipcar's UK exit took nearly half of the national car club fleet off the road. In London it was even higher, over 90%. That's around 2,500 vehicles gone in a few months.

It's easy to read that as a failing business model. It isn't — the model works. CoMoUK's research from May puts the saving at roughly £2,800 a year versus private ownership, with each shared vehicle replacing about 23 private cars (28 in London).

What actually happened is more uncomfortable.

Car sharing in London was (and largely still is) negotiated borough by borough, all thirty-three of them, and inside each one the same conflict plays out: sustainability officers pushing to cut car ownership and grow public transport use, against parking and permits teams pushing to generate more revenue through more permits and/or higher charges. No single consistent contract, and no one accountable for whether the operator could survive across the whole city. Some boroughs charged over £2,000 for a single car club bay. Floating vehicles were barred from parts of central London entirely.

So the unit economics were being set by dozens of decisions where nobody had the full picture.

You can build an excellent platform on top of that. Zipcar largely did; booking, mobile access, fleet telematics, all of it worked. None of it touches the financial pressure that eventually pushed them out; parking costs was just one of several factors, set in someone else's policy meetings.

Since the exit, a handful of boroughs have cut their car club charges, and Southwark has brought in three operators to replace some of what was lost. This is encouraging, and proof the fix was never technical. It was always available, just never prioritised.

The lesson I keep relearning: the hardest question in a technology business isn't how to build the thing. It's working out which of your constraints are actually about technology, and being honest when the answer is none of them.