The promotion involves the first 100 buyers (for GM's 100-year anniversary) and 5,000 shares in GM that the siblings bought at the end of last week. GM stock is floating between $6.00 and $7.00 today, meaning that the lucky 100 will have something in the neighborhood of $300-350... assuming GM's stock hold steady.
It being Friday afternoon and an excruciatingly long week, we'll let you make the jokes in the comments below.
[Source: Automotive News - Sub. Req.]