European vehicles are getting noticeably larger — averaging about 1 centimetre wider per year — which creates real safety risks for pedestrians and parking problems on crowded streets. Larger vehicles require more road space, reducing room for smaller cars and making collisions with pedestrians more severe due to increased mass and hood height. The post uses 'Ozempic for cars' as a metaphor for weight-reduction, which oversimplifies the policy challenge — the actual solutions involve regulations on vehicle size limits, safety taxes, or design standards, not pharmaceutical approaches.