Cambridge is small enough, and cycle-friendly enough that nothing is more than 15 minutes away. Bumper-to-bumper is a choice (assuming you live reasonably near the centre)
Is it really cycle friendly? Before I moved here I had this idea that it would be like Amsterdam or something. It's not even close. The roads are potholed and badly designed for bicycles. When I used to cycle in from the edge of the city I'd overtake hundreds of cars, as usual, but barely see any other cyclists. Really no different from anywhere else I've lived in the UK except there are, inexplicably, loads of bike chained to railings everywhere.
As for living in the city, you either have to share with someone or pay exorbitant amounts for something tiny. And what are you even getting for the money? In London you get to live in a world-class city with the best public transport in the country. What do you even get in Cambridge? It's only famous for its university, and that is off-limits for plebeians.
Well yes, if you're a student or a researcher working at the University and living in Cambridge then yes, you can get everywhere by bike easier, been there done that myself.
The problem is when you get a job at one of the surrounding companies as most of them are outside the city and once you start planning a family you tend to move out of the city as well.
Then your car is your only way to get to work basically as the city and surrounding region is not dense enough to warrant implementing good public transportation.
As for living in the city, you either have to share with someone or pay exorbitant amounts for something tiny. And what are you even getting for the money? In London you get to live in a world-class city with the best public transport in the country. What do you even get in Cambridge? It's only famous for its university, and that is off-limits for plebeians.