There's a lot to this. But it's not just about lobbying, it's also about unions and votes. The American auto dealerships likewise have a lot of what's described as "lobbying power" when really it's more that they have a lot of people that want to see politicians protect them.
Many trucks in the US have a bumper sticker that says, "Without trucks, America stops." Teamster strikes, like the León Vilarín teamster strike in October 1972 in Chile, are a disaster for any country and create national emergencies.