They're not excessive - they're more in line with true cost of car dependent society. In the US we shower subsidies on car owners. Some examples: using general fund money to build highways, charging low gas taxes that don't cover cost of maintenance of roads, providing free/underpriced parking in every downtown in the US, undercharging for pollution and other negative externalities of driving, requiring minimum amounts of parking in new developments (instead of capping parking quantity or letting developer choose how much to provide), qualifying infrastructure using car centric metrics like Level-of-Service, federal gov't providing automatic 10-to-1 match for highway projects but 1-to-1 (in good cases) for transit projects to name a few