Car makers have a very low profit margin. Toyota has about 7% (and that's very high for cars -- GM has like 1%). Google has about 30% profit margin. There's definitely a lot more money in cars in general (in terms of revenue), but Google's net income for 2006 was $1 billion more than GM, despite GM having about $197 billion more in revenue. Having high revenues doesn't mean you're making a lot in profit, which is what counts.