I think it's far more localised than "city" or "region". It depends on where in the city the place of work is and if there is a car park.
E.g. the 2 biggest employers in Oxford UK are the University, where almost no one would commute by car, and the MINI car factory, where almost everyone would. That's because the University is in the historic part of town, with good bus service, near the main train station, easy cycling and no parking, but the car factory is at the edge of town, with good access to the road network and lots of parking.
E.g. the 2 biggest employers in Oxford UK are the University, where almost no one would commute by car, and the MINI car factory, where almost everyone would. That's because the University is in the historic part of town, with good bus service, near the main train station, easy cycling and no parking, but the car factory is at the edge of town, with good access to the road network and lots of parking.